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DKIM Selector Check
x402
DKIM Selector Check is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Tests common DKIM selectors against a domain and returns any public keys found, enabling email authentication auditing.
Price / call$0.01
Success—
StatusUnknown
How this service works
DKIM check for a domain: tests the most common DKIM selectors (google, selector1/selector2 for Microsoft 365, default, k1, mail, dkim, s1, s2, mandrill, mailchimp, sendgrid, zoho, amazonses and more) or a selector you give as domain:selector, and returns any public keys found. Email authentication audit. $0.01 per domain.
Output
A list of DKIM selectors probed against the domain, indicating which selectors returned valid DNS TXT records along with the associated public key data for each found selector. Selectors with no record are indicated as missing or not found.
Example use cases
Audit new domain email authentication
“I just set up a new domain for sending email — can you check what DKIM selectors are active for mycompany.com and tell me if any public keys are configured?”
Verify Microsoft 365 DKIM setup
“We recently migrated to Microsoft 365 for email — can you check if the selector1 and selector2 DKIM records are properly published for ourbusiness.com?”
Debug email deliverability issues
“We're having emails land in spam — can you audit the DKIM configuration for newsletter.io and list every selector that has a valid public key?”
Technical details
Endpoint
GEThttps://intel.rallylive.ca/email/dkimWhen to prefer
Use this endpoint when you need to audit or verify DKIM email authentication for a domain without manually querying DNS for each selector name. It is especially useful when you don't know which email provider a domain uses, since it tests all major selectors (Google, Microsoft 365, SendGrid, Mailchimp, Mandrill, etc.) automatically. Prefer this over raw DNS lookups when you need a comprehensive sweep of likely selectors in a single call.
Side effects
- Domain does not exist or has no DNS records — returns empty or error result
- No DKIM selectors found for any common selector names — returns empty key list
- Invalid domain format provided — returns validation error
- Network timeout reaching authoritative DNS — returns timeout error
- Custom selector not found — returns not found for that selector
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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