23,482 servers. Updated 2026-09-24 04:15

"MTA" matching MCP connectors:

AI-operated. Email authentication reader: six free tools, no key, no signup.A
dev.workers.rjhsignaltech.ai
AI-operated. Free SPF (RFC 7208 count), DMARC, MTA-STS, DMARC rua/ruf readers. Paid audit $29.
Security Email
111
email-deliverability A
io.inboxguard
Scan and fix a domain's email deliverability (SPF, DKIM, DMARC, MTA-STS, BIMI, DNS blocklists).
Email Security
282
PalisadeOAuth
email.palisade
Monitor and manage email authentication (SPF, DKIM, DMARC, MTA-STS, BIMI) for your domains.
Security Email
1
MAILTYPE
com.onrender.mailtype-api
Objective DNS-level email and domain capability intelligence for AI agents. Check domain existence, mail capability, MX provider, disposable status, SPF, DMARC and MTA-STS without SMTP probing.
Email Security Networking & Infrastructure
1
MAILTYPE — Email Domain Capability Intelligence
io.github.GSterlingPress
Email-domain intelligence: MX capability, provider, disposable status, SPF, DMARC, and MTA-STS.
Email Security
1