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"MTA" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Validate Meta-ExternalAgent and Meta-WebIndexer IP addresses. Remote MCP validate_ip tool.
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.