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Mail Security Tools Bulk Domain Email Security Scorer
x402
Mail Security Tools Bulk Domain Email Security Scorer is a paid API for AI agents from api.mailsecuritytools.com, paid per call via x402, $0.5/call, status unknown (last checked 2026-10-19).
Scores up to 100 domains at once for email security posture, returning a letter grade, numeric score, and issue list for each domain.
Price / call$0.5
Success—
StatusUnknown
How this service works
Free directory of email-security and MSP tools for small businesses. Free-tier notes are dated from each vendor page.
Output
Returns a JSON object with a 'results' array where each entry contains the domain name, a letter grade (A–F), a numeric score (0–100), a list of specific issues found, and a status field. A 'summary' object provides grade distribution counts, total domains scored, and the average score across all domains.
Example use cases
MSP client portfolio audit
“I manage email security for about 50 small business clients — can you score all their domains at once and tell me which ones are getting a C or below so I know where to focus first?”
Pre-send domain health check
“Before we launch this email campaign, can you bulk-check the email security grades for all the domains on our sender list and flag any that have issues?”
Competitor domain security benchmarking
“Can you score these 10 competitor domains for email security and give me a summary of their average grade and how many are failing?”
Technical details
Endpoint
GEThttps://api.mailsecuritytools.com/v1/bulk-score?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to assess email security posture (SPF, DKIM, DMARC, etc.) for multiple domains in a single call rather than one at a time. It is ideal for MSPs auditing client portfolios, security teams doing periodic sweeps, or marketers validating sender domains before campaigns. Prefer it over single-domain checkers when you have 2–100 domains to evaluate and want a consolidated grade summary.
Side effects
- Domains list exceeds 100 entries — API may reject or truncate the request
- Malformed domain strings in the comma-separated list — individual domain entries may return an error status
- Network timeout for very large batches close to the 100-domain limit
- Invalid query parameter format — missing or empty 'domains' param returns an error
- DNS lookup failures for non-existent domains may return a failed status per domain
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"report": "bulk_email_security_score",
"results": [
{
"grade": "B",
"score": 80,
"domain": "example.com",
"issues": [],
"status": "ok"
}
],
"summary": {
"grades": {
"A": 0,
"B": 1,
"C": 0,
"D": 0,
"F": 1
},
"scored": 2,
"average_score": 61
},
"domain_count": 2
}
}Tags
x402
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