332 Services from email.intel.rallylive.ca

Checks whether a domain's email is hosted by Amazon SES by looking up its MX records via Cloudflare DoH and matching against Amazon SES mail-exchanger patterns.

Checks whether a domain's email is hosted by Barracuda by looking up MX records via Cloudflare DoH and matching against Barracuda's mail-exchanger patterns.

Checks whether a domain's email is hosted by Cloudflare Email Routing by looking up its MX records and matching them against known Cloudflare mail-exchanger patterns.

Checks whether a domain's email is hosted by Fastmail by looking up its MX records via Cloudflare DoH and matching against Fastmail's mail-exchanger patterns.

Checks whether a domain's email is hosted by Forcepoint by resolving MX records via Cloudflare DoH and matching against Forcepoint mail-exchanger patterns.

Checks whether a domain's email is hosted by GMX by querying MX records via Cloudflare DoH and matching against GMX mail-exchanger patterns, returning yes/no plus matched hosts.

Checks whether a domain's email is hosted by Google Workspace by querying MX records via Cloudflare DoH and matching against Google Workspace mail-exchanger patterns.

Checks whether a domain's email is hosted by Hetzner Mail by looking up MX records via Cloudflare DoH and matching against Hetzner mail-exchanger patterns, returning yes/no plus matched MX hosts.

Checks whether a domain's email is hosted by Hey (hey.com) by looking up MX records via Cloudflare DoH and matching against Hey's mail-exchanger patterns.

Checks whether a domain's email is hosted by HubSpot Mail by inspecting its MX records via Cloudflare DoH and matching against HubSpot Mail exchanger patterns.

Checks whether a domain's email is hosted by Mailbox.org by querying MX records via Cloudflare DoH and matching against Mailbox.org's mail-exchanger patterns, returning yes/no plus matched hosts.

Checks whether a domain's email is hosted by Mailchimp/Mandrill by looking up its MX records via Cloudflare DoH and matching against known Mandrill mail-exchanger patterns.

Detects whether a domain's email is hosted by Mailgun by querying MX records via Cloudflare DoH and matching against Mailgun's mail-exchanger patterns.

Checks whether a domain's email is hosted by Mail.ru by querying MX records via Cloudflare DoH and matching against Mail.ru mail-exchanger patterns.

Checks whether a domain's email is hosted by Microsoft 365 by looking up its MX records via Cloudflare DoH and matching against Microsoft 365 mail-exchanger patterns, returning a yes/no result with matched hosts.

Checks whether a given domain's email is hosted by Migadu by looking up MX records via Cloudflare DoH and matching them against Migadu's mail-exchanger patterns.

Checks whether a domain's email is hosted by Naver Works by querying MX records via Cloudflare DoH and matching against Naver Works mail-exchanger patterns.

Checks whether a domain's email is hosted by Postmark by resolving its MX records via Cloudflare DoH and matching them against known Postmark mail-exchanger patterns.

Checks whether a domain's email is hosted by Proofpoint by looking up MX records via Cloudflare DoH and matching against Proofpoint mail-exchanger patterns.

Checks whether a domain's email is hosted by Rackspace Email by performing an MX record lookup via Cloudflare DoH and matching against Rackspace Email's known mail-exchanger patterns.

Checks whether a domain's email is hosted by Runbox by looking up its MX records via Cloudflare DoH and matching against Runbox mail-exchanger patterns.

Checks whether a domain's email is hosted by SendGrid by looking up its MX records via Cloudflare DoH and matching against SendGrid mail-exchanger patterns, returning a yes/no result with matched hosts.

Checks whether a domain's email is hosted by Sophos by looking up MX records via Cloudflare DoH and matching against Sophos mail-exchanger patterns.

Checks whether a domain's email is hosted by Tencent Exmail by looking up MX records via Cloudflare DoH and matching them against Tencent Exmail mail-exchanger patterns.

Checks whether a domain's email is hosted by Yahoo Mail by looking up MX records via Cloudflare DoH and matching them against Yahoo Mail's mail-exchanger patterns.

Checks whether a domain's email is hosted by Zendesk Mail by querying MX records via Cloudflare DoH and matching against Zendesk Mail exchanger patterns.

Checks whether a domain's SPF record authorizes ActiveCampaign to send email on its behalf, returning a yes/no result, the matching mechanism, and the full SPF record.

Checks whether a domain's SPF record explicitly authorizes DocuSign to send email on its behalf, returning yes/no, the matching SPF mechanism, and the full raw record.

Checks whether a domain's SPF record authorizes MailerLite to send email on its behalf, returning a yes/no result, the matching mechanism, and the full SPF record.

Checks whether a domain's SPF record authorizes Mailgun to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Checks whether a domain's SPF record authorizes Microsoft 365 to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Checks whether a domain's email is hosted by Mimecast by looking up its MX records via Cloudflare DoH and matching them against known Mimecast mail-exchanger patterns.

Checks whether a domain's email is hosted by Proton Mail by looking up its MX records via Cloudflare DoH and matching against Proton Mail's mail-exchanger patterns.

Checks whether a domain's email is hosted by Zoho Mail by querying MX records via Cloudflare DoH and matching against Zoho Mail exchanger patterns

Checks whether a domain's SPF record explicitly authorizes Amazon SES to send email on its behalf, returning a yes/no result, the matching SPF mechanism, and the full SPF TXT record.

Checks whether a domain's SPF record authorizes Brevo (formerly Sendinblue) to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Checks whether a domain's SPF record authorizes SendGrid to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Checks whether a domain's SPF record authorizes Intercom to send email on its behalf, returning a yes/no result, the matching mechanism, and the full SPF record.

Checks if a given domain's email is hosted by Biglobe by querying MX records via Cloudflare DoH and matching against Biglobe's mail-exchanger patterns.

Checks whether a domain's email is hosted by Cisco Secure Email by looking up MX records via Cloudflare DoH and matching against known Cisco Secure Email mail-exchanger patterns.

Checks whether a domain's email is hosted by GoDaddy Email by looking up MX records via Cloudflare DoH and matching against GoDaddy Email mail-exchanger patterns.

Checks whether a domain's email is hosted by Hostinger Mail by looking up MX records via Cloudflare DoH and matching against Hostinger mail-exchanger patterns.

Checks whether a domain's email is hosted by Salesforce Email by looking up its MX records and matching them against known Salesforce Email mail-exchanger patterns.

Checks whether a domain's SPF record authorizes Drip (the email marketing platform) to send mail on its behalf, returning a yes/no result, the matching SPF mechanism, and the full SPF record.

Checks whether a domain's SPF record authorizes Fastmail to send email on its behalf, returning a yes/no result, the matching mechanism, and the full SPF record.

Checks whether a domain's SPF record explicitly authorizes GoDaddy to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Checks whether a domain's SPF record authorizes Mailchimp to send email on its behalf, returning a yes/no verdict, the matching mechanism, and the full SPF record.

Checks whether a domain's SPF record authorizes Mailjet to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Checks whether a domain's SPF record authorizes NetSuite to send email on its behalf by querying the SPF TXT record via Cloudflare DoH and matching NetSuite-specific mechanisms.

Checks whether a domain's SPF record explicitly authorizes Pardot to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Checks whether the service@<domain> address looks deliverable by validating syntax, MX records, mail provider, disposable/free-provider flags, and SPF/DMARC presence.

Checks whether a domain's email is hosted by Bluehost Mail by looking up MX records via Cloudflare DoH and matching against Bluehost Mail exchanger patterns.

Runs an email compliance check for a domain, compares the result against the previous call (retained 90 days), and returns current compliance state plus any changed fields with before/after values.

Checks up to 20 email addresses at once for brand impersonation in the local part (the portion before the @), returning per-item results concurrently with a failure count.

Verifies whether the office@ email address for a given domain is deliverable by checking syntax, MX records, mail provider, disposable/free flags, and SPF/DMARC presence.

Checks whether a domain's email is hosted by Alibaba Mail by looking up MX records via Cloudflare DoH and matching against Alibaba Mail patterns, returning yes/no with matched hosts.

Checks up to 20 domains concurrently to determine if their email is hosted by Alibaba Mail, returning per-item results in input order with error fields and a failure count.

Monitors whether a domain's email is hosted by Alibaba Mail, alerting you when that status changes between checks.

Checks whether up to 20 domains have their email hosted by Amazon SES in a single concurrent batch call, returning per-item results with error fields and a failure count.

Checks whether a domain's email is hosted by Amazon SES, compares result with previous check (stored 90 days), and returns current answer plus change indicators.

Checks whether a domain's email is hosted by AOL by looking up MX records via Cloudflare DoH and matching against AOL mail-exchanger patterns, returning a yes/no result with matched hosts.

Monitors whether a domain's email is hosted by AOL and alerts when the result changes compared to the previous check.

Bulk-checks up to 20 domains at once to determine whether each domain's email is hosted by Barracuda, returning concurrent results in input order with per-item errors and a failure count.

Checks up to 20 domains at once to determine whether each domain's email is hosted by Bluehost Mail, using MX record lookups via Cloudflare DoH, returning ordered results with per-item error fields.

Monitors whether a domain's email is hosted by Bluehost Mail, returning the current result, whether it changed since the last check, and field-level before/after diffs.

Checks up to 20 domains in a single call to determine if each domain's email is hosted by Cisco Secure Email, returning ordered results with per-item error fields and a failure count.

Monitors whether a domain's email is hosted by Cisco Secure Email and alerts when that status changes, comparing against the previous check result stored for up to 90 days.

Checks up to 20 domains in one call to determine if each domain's email is hosted by Cloudflare Email Routing, returning ordered results with per-item errors and a failure count.

Monitors whether a domain's email is hosted by Cloudflare Email Routing, returning the current result, whether it changed, and a before/after diff since the last check.

Checks whether a domain's email is hosted on a self-hosted cPanel server by looking up MX records via Cloudflare DoH and matching against known cPanel mail-exchanger patterns.

Checks whether up to 20 domains' email is hosted by Fastmail in a single concurrent batch call, returning one result per domain with per-item error fields and a failure count.

Monitors whether a domain's email is hosted by Fastmail and alerts when that status changes, comparing current MX-record results against a stored baseline from up to 90 days ago.

Change-watch endpoint that checks if a domain's email is hosted by Forcepoint, compares with the previous result (kept 90 days), and returns current status plus change details.

Checks whether a domain's email is hosted by Fortinet by querying MX records via Cloudflare DoH and matching against Fortinet mail-exchanger patterns, returning a yes/no answer with matched hosts.

Monitors whether a domain's email is hosted by Fortinet, alerting when the hosting status changes compared to the previous check.

Checks whether a domain's email is hosted by Forward Email by looking up its MX records via Cloudflare DoH and matching them against Forward Email's mail-exchanger patterns.

Monitors whether a domain's email is hosted by Forward Email and alerts when that status changes, comparing against a previously stored result.

Checks whether a domain's email is hosted by Freshdesk Mail by looking up MX records via Cloudflare DoH and matching them against Freshdesk Mail exchanger patterns, returning a yes/no result with matched hosts.

Monitors whether a domain's email is hosted by Freshdesk Mail and alerts you when that status changes, comparing against the previous check result stored for 90 days.

Bulk-checks whether up to 20 domains have their email hosted by GMX, processing all concurrently and returning results in input order with per-item error fields.

Monitors whether a domain's email is hosted by GoDaddy and alerts when that status changes, returning the current result, a changed flag, field-level before/after diffs, and last-seen timestamp.

Checks up to 20 domains concurrently to determine whether each domain's email is hosted by Google Workspace, returning results in input order with per-item error details.

Monitors whether a domain's email is hosted by Google Workspace and alerts when that status changes, comparing against a stored previous result.

Checks up to 20 domains concurrently to determine if each domain's email is hosted by Hetzner Mail, returning per-item results in input order with error fields and a failure count.

Watches a domain for changes in whether its email is hosted by Hetzner Mail, returning current status, change flag, and before/after diff.

Checks up to 20 domains at once to determine whether each domain's email is hosted by Hey (hey.com), returning concurrent results in input order with per-item error fields.

Monitors whether a domain's email is hosted by Hey, comparing results to the previous check and returning change details with before/after values.

Checks whether a domain's email is hosted by HostGator Mail by querying MX records via Cloudflare DoH and matching against HostGator mail-exchanger patterns.

Monitors whether a domain's email is hosted by Hostinger Mail and alerts when that status changes, returning a diff of before/after values.

Checks whether a domain's email is hosted by HubSpot Mail, compares with the previous result (retained 90 days), and returns what changed and when.

Checks whether a domain's email is hosted by Hushmail by looking up its MX records via Cloudflare DoH and matching against Hushmail mail-exchanger patterns.

Checks whether a domain's email is hosted by Apple iCloud by looking up its MX records via Cloudflare DoH and matching against iCloud mail-exchanger patterns.

Bulk-checks up to 20 email domains concurrently to determine whether each is hosted by Apple iCloud Mail, returning ordered results with per-item errors and a failure count.

Monitors whether a domain's email is hosted by iCloud (Apple Mail) and alerts when that status changes, comparing against the previously recorded result.

Checks whether a domain's email is hosted by ImprovMX by querying MX records via Cloudflare DoH and matching against ImprovMX mail-exchanger patterns.

Monitors whether a domain's email is hosted by ImprovMX and alerts when that status changes, comparing against the previous result stored for 90 days.

Checks whether a domain's email is hosted by Infomaniak Mail by looking up its MX records via Cloudflare DoH and matching against Infomaniak mail-exchanger patterns.

Monitors whether a domain's email is hosted by Infomaniak Mail, alerting you when the answer changes between checks.

Checks whether a domain's email is hosted by Intercom Mail by performing MX record lookups via Cloudflare DoH and matching against Intercom's mail-exchanger patterns.

Checks whether a domain's email is hosted by IONOS Mail by looking up its MX records via Cloudflare DoH and matching against IONOS mail-exchanger patterns.

Checks whether up to 20 domains have their email hosted by IONOS Mail in a single concurrent batch call, returning per-item results and a failure count.

Checks whether a domain's email is hosted by Kolab by looking up its MX records via Cloudflare DoH and matching against Kolab's mail-exchanger patterns.

Checks up to 20 domains in a single call to determine if each domain's email is hosted by Mailbox.org, returning results in input order with per-item error info and a failure count.

Monitors whether a domain's email is hosted by Mailbox.org and alerts when that status changes, returning current answer, change flag, before/after field diffs, and last-seen timestamp.

Checks whether a domain's email is hosted by Mailfence by looking up MX records via Cloudflare DoH and matching against Mailfence's mail-exchanger patterns

Checks up to 20 domains in a single call to determine whether each domain's email is hosted by Mailgun, returning results in input order with per-item errors and a failure count.

Monitors whether a domain's email is hosted by Mailgun and alerts when that status changes, comparing against the previous check stored for 90 days.

Checks up to 20 domains at once to determine if their email is hosted by Mail.ru, using MX record lookups via Cloudflare DoH, returning ordered results with per-item error fields and a failure count.

Monitors whether a domain's email is hosted by Mail.ru and alerts when the hosting status changes, comparing current results against a stored previous check.

Checks up to 20 domains at once to determine whether each is hosted on Microsoft 365 email, returning results in input order with per-item error details and a failure count.

Watches a domain and alerts when its email hosting changes to or from Microsoft 365, comparing current MX lookup against the prior result stored for 90 days.

Checks whether up to 20 domains are hosted by Migadu email in a single concurrent batch call, returning per-item results in input order with error details and a failure count.

Monitors whether a domain's email is hosted by Migadu, alerting when the status changes by comparing with the previous check result.

Bulk-checks up to 20 domains at once to determine whether each domain's email is hosted by Mimecast, returning results in input order with per-item error fields.

Monitors whether a domain's email is hosted by Mimecast, alerting when that status changes by comparing current results against the previous check stored for up to 90 days.

Checks whether a domain's email is hosted by Namecheap PrivateEmail by looking up its MX records via Cloudflare DoH and matching against Namecheap PrivateEmail mail-exchanger patterns.

Checks whether up to 20 domains have their email hosted by Namecheap PrivateEmail in a single concurrent batch call, returning a per-item boolean result and error field.

Monitors whether a domain's email is hosted by Namecheap Private Email and alerts when the answer changes, returning before/after values and change timestamps.

Monitors whether a domain's email is hosted by Naver Works and alerts when that status changes, comparing against a previously stored result.

Checks whether a domain's email is hosted by One.com by looking up its MX records via Cloudflare DoH and matching them against One.com's known mail-exchanger patterns.

Monitors whether a domain's email is hosted by One.com (via MX record lookup) and returns a change-detected result comparing the current check against the previous result stored for up to 90 days.

Checks whether a domain's email is hosted by OVHcloud Exchange by looking up its MX records and matching them against OVHcloud Exchange patterns, returning a yes/no result with matched hosts.

Checks up to 20 domains at once to determine whether each is hosted on OVHcloud Exchange, returning results in input order with per-item error fields and a failure count.

Monitors whether a domain's email is hosted by OVHcloud Exchange and alerts on any changes compared to the previous check result.

Checks whether a domain's email is hosted by OVH Mail by looking up its MX records via Cloudflare DoH and matching against OVH Mail's known mail-exchanger patterns, returning a yes/no result with matched hosts.

Checks whether a domain's email is hosted by OVH Mail, compares the result to the previous check (stored 90 days), and returns the current status plus a changed flag and before/after field diffs.

Checks whether a given domain's email is hosted by Posteo by querying MX records via Cloudflare DoH and matching against Posteo's mail-exchanger patterns.

Checks whether up to 20 domains have their email hosted by Posteo in a single concurrent batch call, returning a per-item boolean result and error field.

Monitors whether a domain's email is hosted by Posteo and alerts when the result changes, returning a diff with before/after values and timestamps.

Checks up to 20 domains at once to determine if each domain's email is hosted by Postmark, returning concurrent results with per-item error fields and a failure count.

Monitors whether a domain's email is hosted by Postmark and alerts when that status changes, comparing the current check against the previous result stored for 90 days.

Checks up to 20 domains at once to determine whether their email is hosted by Proofpoint, returning concurrent results in input order with per-item error info.

Monitors whether a domain's email is hosted by Proofpoint, alerting when the status changes between checks.

Checks whether a domain's email is hosted by Proton Mail and returns a change-detected comparison against the previous check result, including which fields changed and before/after values.

Checks up to 20 domains in a single call to determine whether each domain's email is hosted by Rackspace Email, returning concurrent results in input order with per-item error fields.

Monitors whether a domain's email is hosted by Rackspace Email, alerting when the result changes compared to the previous check.

Checks up to 20 domains at once to determine whether their email is hosted by Runbox, returning results in input order with per-item error fields and a failure count.

Checks up to 20 domains at once to determine whether each domain's email is hosted by Salesforce Email, returning per-item results with error fields and a failure count.

Checks whether a domain's email is hosted by Salesforce Email, compares with the previous result (retained 90 days), and returns current status plus whether and what changed.

Checks up to 20 domains at once to determine whether each domain's email is hosted by SendGrid, returning results in input order with per-item error fields and a failure count.

Monitors whether a domain's email is hosted by SendGrid, alerting you when that status changes between checks.

Checks whether a domain's email is hosted by SiteGround Mail by querying MX records via Cloudflare DoH and matching against SiteGround mail-exchanger patterns, returning a yes/no result with matched hosts.

Checks up to 20 domains at once to determine if their email is hosted by Sophos, returning ordered results with per-item error fields and a failure count.

Checks whether a domain's email is hosted by SparkPost by looking up its MX records via Cloudflare DoH and matching against SparkPost mail-exchanger patterns

Monitors whether a domain's email is hosted by SparkPost, comparing current results against a previous check to detect and report any changes.

Checks whether a given domain's email is hosted by StartMail by resolving MX records via Cloudflare DoH and matching against StartMail's mail-exchanger patterns.

Monitors whether a domain's email is hosted by StartMail and alerts when that status changes, comparing against a 90-day history of previous results.

Checks whether a domain's email is hosted by Strato Mail by querying MX records via Cloudflare DoH and matching against Strato Mail exchanger patterns.

Checks up to 20 domains at once to determine whether each domain's email is hosted by Strato Mail, using MX record lookups via Cloudflare DoH, returning ordered results with per-item error fields.

Monitors whether a domain's email is hosted by Strato Mail, alerting when the result changes compared to the previous check.

Checks whether a domain's email is hosted by Symantec MessageLabs by looking up its MX records and matching them against known MessageLabs mail-exchanger patterns.

Checks up to 20 domains at once to determine if each domain's email is hosted by Symantec MessageLabs, returning concurrent results in input order with per-item errors and a failure count.

Checks if a domain's email is hosted by Symantec MessageLabs and returns change detection results compared to the previous check, including which fields changed and when.

Checks up to 20 domains at once to determine whether each domain's email is hosted by Tencent Exmail, returning ordered results with per-item error fields and a failure count.

Monitors whether a domain's email is hosted by Tencent Exmail and alerts you when that status changes, comparing against your previous check result.

Checks whether a domain's email is hosted by Titan by looking up its MX records and matching them against Titan's mail-exchanger patterns.

Checks whether a domain's email is hosted by Trend Micro by looking up its MX records via Cloudflare DoH and matching against Trend Micro mail-exchanger patterns.

Change-watch that checks if a domain's email is hosted by Trend Micro, comparing against the previous result to alert on changes.

Checks whether a given domain's email is hosted by Tutanota by looking up MX records via Cloudflare DoH and matching them against Tutanota's known mail-exchanger patterns.

Checks up to 20 domains at once to determine whether each domain's email is hosted by Tutanota, returning ordered results with per-item error fields and a failure count.

Monitors whether a domain's email is hosted by Tutanota and alerts when the result changes, storing comparison state for 90 days.

Checks whether a domain's email is hosted by Web.de by querying MX records via Cloudflare DoH and matching them against Web.de mail-exchanger patterns, returning yes/no plus matched hosts.

Checks up to 20 domains concurrently to determine if each domain's email is hosted by Web.de, returning results in input order with per-item error fields and a failure count.

Checks up to 20 domains in a single call to determine whether each domain's email is hosted by Yahoo Mail, returning results in input order with per-item error fields and a failure count.

Checks whether a domain's email is hosted by Yandex Mail by querying MX records via Cloudflare DoH and matching against Yandex Mail exchanger patterns, returning a yes/no result with matched hosts.

Monitors whether a domain's email is hosted by Yandex Mail and alerts when that status changes, returning a diff of before/after values.

Monitors whether a domain's email is hosted by Zendesk Mail and alerts when that status changes, returning current result, changed flag, before/after field diffs, and last-seen timestamp.

Monitors whether a domain's email is hosted by Zoho Mail and alerts when that status changes, comparing current MX lookup results against the previous check stored for up to 90 days.

Checks up to 20 email addresses in one call to determine if each is associated with the burnermail.io disposable/temporary email service, returning results in input order with per-item error details.

Checks up to 20 email addresses in one call to determine if each is a GMX webmail address, returning per-item results with error fields and a failure count.

Checks whether an email address belongs to a Yandex consumer mailbox domain (yandex.com, yandex.ru, ya.ru) and classifies it as personal vs. business.

Monitors whether a domain's SPF record authorizes ActiveCampaign to send its mail, alerting when that authorization status changes.

Checks up to 20 domains in a single call to determine whether each domain's SPF record authorizes Amazon SES to send mail on its behalf, returning results in input order with per-item errors and a failure count.

Monitors whether a domain's SPF record authorizes Amazon SES and alerts when that authorization status changes.

Checks whether a domain's SPF record authorizes Atlassian to send email on its behalf, returning a yes/no result, the matching mechanism, and the full SPF record.

Checks whether a domain's SPF record authorizes Barracuda Networks to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes Barracuda mail servers, alerting when the authorization status changes between checks.

Checks whether a domain's SPF record authorizes Braze as a permitted email sender, returning yes/no, the matching mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes Braze to send email, alerting you when the authorization status changes.

Monitors whether a domain's SPF record authorizes Brevo (Sendinblue) as a sender, alerting when the authorization status changes between checks.

Checks whether a domain's SPF record authorizes Calendly to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes Calendly to send mail, alerting when the authorization status changes between checks.

Checks whether a domain's SPF record authorizes Campaign Monitor to send email on its behalf, returning a yes/no verdict, the matching SPF mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes Campaign Monitor to send mail, alerting when the authorization status changes.

Checks whether a domain's SPF record authorizes Constant Contact to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Checks whether a domain's SPF record authorizes Customer.io to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes Customer.io to send mail, returning a diff (changed true/false, before/after values) compared to the previous call for the same domain.

Checks whether a domain's SPF record authorizes Deel to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Checks whether a domain's SPF record explicitly authorizes Eventbrite to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes Fastmail, detecting changes between successive checks and returning before/after diffs

Checks whether a domain's SPF record authorizes Freshdesk to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes Freshdesk mail servers, alerting when the authorization status changes.

Checks whether a domain's SPF record authorizes GitHub to send email on its behalf, returning a yes/no verdict, the matching SPF mechanism, and the full record.

Monitors whether a domain's SPF record authorizes GitHub to send its mail, alerting you when the authorization status changes.

Monitors whether a domain's SPF record authorizes GoDaddy as a mail sender, returning the current result, whether it changed, and what changed since the last check.

Checks whether a domain's SPF record authorizes Google Workspace to send mail on its behalf, returning yes/no, the matching SPF mechanism, and the full SPF record.

Checks whether the SPF record for up to 20 domains authorizes Google Workspace mail sending, in a single concurrent batch call.

Monitors whether a domain's SPF record authorizes Google Workspace and alerts when that status changes.

Checks whether a domain's SPF record authorizes Greenhouse to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes Greenhouse (greenhouse.io) as a mail sender and alerts when that authorization status changes.

Checks whether a domain's SPF record authorizes Gusto to send email on its behalf, returning a yes/no result, the matching mechanism, and the full SPF record.

Monitors whether Gusto is authorized in a domain's SPF record and returns a diff when the authorization status changes.

Checks whether a domain's SPF record authorizes HubSpot to send email on its behalf, returning a yes/no result, the matching SPF mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes HubSpot as a sending source, alerting when the result changes from a previous check.

Checks whether a domain's SPF record explicitly authorizes iCloud to send email on its behalf, returning a yes/no result, the matching mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes Intercom to send email, alerting you when the authorization status changes.

Checks whether a domain's SPF record authorizes IONOS to send email on its behalf, returning a yes/no result, the matching mechanism, and the full SPF record.

Checks whether a domain's SPF record authorizes Iterable to send email on its behalf, returning yes/no, the matching SPF mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes Iterable as a sender, returning the current result, change status, and field-level before/after diffs compared to the last check.

Checks whether a domain's SPF record explicitly authorizes Klaviyo to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes Klaviyo as a sending service, alerting you when this authorization status changes.

Checks whether a domain's SPF record authorizes Lever (the ATS) to send email on its behalf, returning yes/no, the matching SPF mechanism, and the full record.

Monitors whether a domain's SPF record authorizes Lever to send email, alerting you when that authorization status changes.

Checks whether the SPF records for up to 20 domains authorize Mailchimp to send email on their behalf, in a single concurrent batch call.

Runs an SPF-authorizes-Mailchimp check for a domain, compares the result against the previous check (retained 90 days), and returns whether the authorization status changed along with before/after field values.

Monitors whether a domain's SPF record authorizes Mailerlite to send mail, detecting and reporting changes since the last check.

Checks whether up to 20 domains' SPF records authorize Mailgun to send email on their behalf, in a single concurrent batch call.

Monitors whether a domain's SPF record authorizes Mailgun to send email, alerting you when that authorization status changes.

Monitors whether a domain's SPF record authorizes Mailjet as a sender and alerts you when that authorization status changes.

Checks whether a domain's SPF record authorizes Mandrill (Mailchimp Transactional) to send email on its behalf, returning a yes/no result, the matching mechanism, and the full SPF record.

Checks whether Mandrill is authorized to send email for up to 20 domains at once by inspecting SPF records, returning a per-domain result with error reporting.

Monitors whether a domain's SPF record authorizes Mandrill to send email, alerting when the authorization status changes between checks.

Checks whether a domain's SPF record authorizes Marketo to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Checks whether a domain's SPF record authorizes Marketo to send email, compares with the previous result, and returns what changed and when.

Checks up to 20 domains at once to determine whether each domain's SPF record authorizes Microsoft 365 mail servers to send email on its behalf.

Monitors whether a domain's SPF record authorizes Microsoft 365 mail servers, returning current status and diff vs. previous check (stored 90 days).

Checks whether a domain's SPF record explicitly authorizes Mimecast to send email on its behalf, returning a yes/no result, the matching mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes Mimecast, detecting and reporting any changes since the last check.

Checks whether a domain's SPF record authorizes OVH to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes OVH to send mail, returning the current result plus a change flag and before/after diff compared to the previous check.

Runs an SPF-authorizes-Pardot check for a domain, compares it against the previous result (retained 90 days), and returns whether the result changed along with before/after field diffs and the last-seen timestamp.

Checks whether a domain's SPF record authorizes Postmark to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Checks whether SPF records for up to 20 domains authorize Postmark as a sending service, processing all domains concurrently in a single batch call.

Checks whether a domain's SPF record authorizes Postmark to send email, compares with the previous result (retained 90 days), and returns whether it changed along with before/after field diffs.

Checks whether a domain's SPF record explicitly authorizes Proofpoint to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes Proofpoint, alerting when this changes by comparing current and previous check results stored for 90 days.

Checks whether a domain's SPF record explicitly authorizes Proton Mail to send email on its behalf, returning a yes/no result, the matching SPF mechanism, and the full raw record.

Monitors whether a domain's SPF record authorizes Proton Mail, returning the current result, whether it changed since the last check, and which fields changed with before/after values.

Checks whether a domain's SPF record includes QuickBooks as an authorized mail sender by reading the SPF TXT record via Cloudflare DoH.

Monitors whether a domain's SPF record authorizes QuickBooks to send email on its behalf, alerting you when that authorization status changes.

Checks whether a domain's SPF record authorizes Rippling to send email on its behalf, returning a yes/no result, the matching mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes Rippling's mail servers, alerting when the result changes from a previous check.

Checks whether a domain's SPF record explicitly authorizes Salesforce to send email on its behalf, returning a yes/no result with the matching mechanism and full SPF record.

Monitors whether a domain's SPF record authorizes Salesforce as a mail sender, alerting you when that authorization status changes.

Checks up to 20 domains in a single concurrent batch to determine whether each domain's SPF record authorizes SendGrid to send email on its behalf.

Monitors whether a domain's SPF record authorizes SendGrid as a mail sender, alerting when that status changes between calls.

Checks whether a domain's SPF record authorizes Sendinblue to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes Sendinblue and alerts you when that authorization status changes.

Checks whether a domain's SPF record explicitly authorizes Shopify to send email on its behalf, returning a yes/no result, the matching mechanism, and the full SPF record.

Checks whether a domain's SPF record authorizes Slack to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Checks whether a domain's SPF record authorizes SparkPost to send email on its behalf, returning a yes/no verdict, the matching mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes SparkPost to send its mail, alerting when the answer changes between checks.

Checks whether a domain's SPF record authorizes Squarespace to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes Squarespace as a mail sender and alerts when the result changes between checks.

Checks whether a domain's SPF record authorizes Stripe as a legitimate mail sender, returning yes/no, the matching mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes Stripe's mail servers, returning current result, change flag, before/after field diffs, and last-seen timestamp.

Checks whether a domain's SPF record explicitly authorizes SurveyMonkey to send email on its behalf, returning a yes/no result, the matching mechanism, and the full SPF record.

Checks whether a domain's SPF record authorizes Twilio to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes Twilio as a mail sender, returning the current result plus a diff of any changes since the last check.

Checks whether a domain's SPF record authorizes Typeform to send email on its behalf, using Cloudflare DoH to read the SPF TXT record.

Monitors whether a domain's SPF record authorizes Typeform to send email, alerting when the authorization status changes compared to the previous check.

Checks whether a domain's SPF record authorizes Wix to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes Wix to send mail, detecting and reporting changes compared to the previous check.

Checks whether a domain's SPF record authorizes Workday to send email on its behalf, returning a yes/no result, the matching mechanism, and the full SPF record.

Checks whether a domain's SPF record authorizes Xero to send email on its behalf, returning a yes/no result, the matching mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes Xero's mail servers, alerting you when the result changes compared to a previous check.

Checks whether a domain's SPF record explicitly authorizes Yahoo to send mail on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes Yahoo mail servers, alerting when the result changes between checks.

Checks whether a domain's SPF record authorizes Zapier to send email on its behalf, returning yes/no, the matching mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes Zapier and alerts when that authorization status changes between calls.

Checks whether a domain's SPF record authorizes Zendesk to send email on its behalf, returning a yes/no result, the matching mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes Zendesk to send email on its behalf, alerting you when the authorization status changes.

Checks whether a domain's SPF record explicitly authorizes Zoho to send email on its behalf, returning a yes/no result, the matching mechanism, and the full SPF record.

Monitors whether a domain's SPF record authorizes Zoho as a mail sender and alerts when this changes.

Checks whether a domain's email is hosted by Intercom Mail, compares the result to the previous check (retained 90 days), and returns whether anything changed along with before/after field diffs.

Checks up to 20 domains at once to determine whether each domain's email is hosted by Proton Mail, returning results in input order with per-item error fields.

Monitors whether a domain's SPF record authorizes IONOS as a mail sender and alerts you when that status changes.

Monitors whether a domain's email is hosted by Yahoo Mail and alerts when that status changes, comparing the current result against the previous check stored for 90 days.

Monitors whether a domain's email is hosted by Barracuda and alerts when that status changes, returning a diff of before/after values.

Checks up to 20 domains concurrently to determine whether each domain's email is hosted by cPanel's self-hosted mail server, returning ordered results with per-item error fields and a failure count.

Bulk-checks whether up to 20 domains have their email hosted by Forcepoint by inspecting MX records via Cloudflare DoH, returning results in input order with per-item errors and a failure count.

Checks up to 20 domains at once to determine if their email is hosted by GoDaddy Email, returning concurrent results in input order with per-item error fields and a failure count.

Monitors whether a domain's email is hosted by Hushmail, alerting when the hosting status changes between checks.

Checks up to 20 domains concurrently to determine whether each domain's email is hosted by Naver Works, returning per-item results with error fields and a failure count.

Monitors whether a domain's email is hosted by Sophos and alerts when that status changes, comparing against the previous result stored for up to 90 days.

Monitors whether a domain's SPF record authorizes SurveyMonkey to send email on its behalf, alerting you when that authorization status changes.

Checks up to 20 domains concurrently to determine whether each domain's email is hosted by Fortinet, returning ordered results with per-item errors and a failure count.

Monitors whether a domain's email is hosted by GMX and alerts when that status changes, comparing against a stored result from up to 90 days ago.

Monitors whether a domain's email is hosted by HostGator Mail and alerts when that status changes, returning current result, changed flag, diff of changed fields, and last-seen timestamp.

Checks whether up to 20 domains are hosted by Hostinger Mail in a single concurrent batch call, returning per-item results with error fields and a failure count.

Checks up to 20 domains at once to determine whether each domain's email is hosted by Hushmail, returning results in input order with per-item error fields and a failure count.

Bulk-checks up to 20 domains in one call to determine whether each domain's email is hosted by ImprovMX, returning results in input order with per-item error fields and a failure count.

Monitors whether a domain's email is hosted by IONOS Mail and alerts when the status changes between checks.

Checks whether up to 20 domains have their email hosted by Kolab in a single concurrent batch call, returning ordered results with per-item error fields.

Monitors whether a domain's email is hosted by Kolab and alerts when that status changes, comparing current results against the previously stored check.

Monitors whether a domain's email is hosted by Mailchimp/Mandrill and alerts when that status changes, returning a diff of before/after values.

Checks up to 20 domains in one concurrent batch to determine whether each domain's email is hosted by Mailfence, returning ordered results with per-item error fields and a failure count.

Monitors whether a domain's email is hosted by Mailfence and alerts when that status changes, comparing against the previous check result stored for up to 90 days.

Checks up to 20 domains concurrently to determine whether each domain's email is hosted by One.com, returning ordered results with per-item error fields and a failure count.

Checks up to 20 domains concurrently to determine if each domain's email is hosted by OVH Mail, returning ordered results with per-item error details and a failure count.

Monitors whether a domain's email is hosted by Runbox and alerts you when that status changes, comparing against the last recorded result.

Change-watch that detects when a domain's email hosting switches to or from Titan, returning current result, change flag, field diffs, and last-seen timestamp.

Checks up to 20 domains concurrently to determine if their email is hosted by Trend Micro, returning ordered results with per-item error fields and a failure count.

Checks up to 20 domains at once to determine whether their email is hosted by Yandex Mail, using MX record lookups via Cloudflare DoH, returning per-item results with error fields and a failure count.

Checks up to 20 domains in one call to determine whether each is hosted by Zoho Mail, returning results in input order with per-item errors and a failure count.

Checks up to 20 email addresses in a single batch call to determine whether each belongs to the disposable email domain mailexpire.com

Checks up to 20 email addresses in one call to determine if they are hosted on mohmal.com, a known disposable/temporary email service

Monitors whether a domain's SPF record authorizes Atlassian to send mail, returning the current result plus a change indicator and before/after diff compared to the previous check.

Checks whether the SPF record of up to 20 domains authorizes Barracuda Networks mail servers, returning per-domain results in input order with error handling and a failure count.

Monitors whether a domain's SPF record authorizes Constant Contact to send email, alerting when the authorization status changes.

Monitors whether a domain's SPF record authorizes DocuSign, detecting and reporting any changes compared to the previous check.

Monitors whether a domain's SPF record authorizes Drip as a sender, alerting you when that authorization status changes between checks.

Monitors whether a domain's SPF record authorizes iCloud to send mail, alerting when the authorization status changes compared to the previous check.

Monitors whether a domain's SPF record authorizes NetSuite mail servers and alerts on changes between polling intervals

Monitors whether a domain's SPF record authorizes Shopify as a mail sender, alerting when the authorization status changes.

Monitors whether a domain's SPF record authorizes Workday as a mail sender, returning current status, change detection, and before/after field diffs compared to the previous check.

Checks whether up to 20 domains have their email hosted by AOL in a single concurrent batch call, returning ordered results with per-item error info and a failure count.

Bulk-checks up to 20 domains at once to determine whether each is hosted by Biglobe email infrastructure, returning ordered results with per-item errors and a failure count.

Monitors whether a domain's email is hosted by Biglobe and alerts you when that status changes between checks.

Change-watch that checks if a domain's email is hosted by cPanel self-hosted, comparing results with the previous check and returning what changed and when.

Checks whether up to 20 domains are hosted by Forward Email in a single concurrent batch call, returning per-item results in input order with error details and a failure count.

Checks up to 20 domains at once to determine whether each domain's email is hosted by HostGator Mail, returning results in input order with per-item errors and a failure count.

Checks up to 20 domains at once to determine if their email is hosted by Infomaniak Mail, returning results in input order with per-item error details.

Bulk-checks up to 20 domains at once to determine if each domain's email is hosted by SiteGround Mail, using MX record lookups via Cloudflare DoH, returning ordered results with per-item error fields and a failure count.

Monitors whether a domain's email is hosted by SiteGround Mail, alerting you when the hosting status changes between checks.

Checks up to 20 domains in one concurrent batch to determine whether each domain's email is hosted by SparkPost, returning results in input order with per-item error fields and a failure count.

Checks whether up to 20 domains have their email hosted by StartMail, processing all items concurrently and returning results in input order with per-item error fields and a failure count.

Checks whether up to 20 domains have their email hosted by Titan, processing all concurrently and returning results in input order with per-item error fields.

Monitors whether a domain's email is hosted by Web.de, alerting when the answer changes between checks (stored 90 days).

Monitors whether a domain's SPF record authorizes Deel to send email, alerting you when that authorization status changes.

Checks whether a domain's SPF record authorizes Eventbrite as a sender, compares the result to the previous check (retained 90 days), and returns what changed and when.

Monitors whether a domain's SPF record authorizes Slack's mail servers, alerting you when this authorization status changes.