{"slug":"pipefire-email-deliverability-tools-f6a4303d","name":"Pipefire email deliverability tools","summary":"Free email deliverability tools: SPF, DKIM, DMARC, blacklist and header checks, cold email scoring.","status":"live","indexable":true,"listed_since":"2026-10-25T17:50:17.022885Z","sources":[{"source":"mcp_registry","external_id":"ai.pipefire/pipefire","owner_address":null,"seen_at":"2026-10-25T17:50:17.022885Z","removed_at":null}],"endpoints":[{"url":"https://pipefire.ai/mcp","host":"pipefire.ai","protocol":"mcp","state":"live","last_probe_at":"2026-10-25T19:14:18.435937Z","last_ok_at":"2026-10-25T19:14:18.435937Z","tools_count":16,"tools_changed_at":null,"uptime_24h":1.0,"uptime_30d":1.0},{"url":"https://pipefire.ai/mcp-server","host":"pipefire.ai","protocol":"web","state":"live","last_probe_at":"2026-10-25T19:13:33.846213Z","last_ok_at":"2026-10-25T19:13:33.846213Z","tools_count":null,"tools_changed_at":null,"uptime_24h":1.0,"uptime_30d":1.0}],"also_listed_as":[],"payment_options":[],"usage":null,"notice":"Not affiliated with addrbook — claim or request removal."}