Pipefire email deliverability tools
mcp remote · streamable-http · v1.0.0 · source: crawl
https://pipefire.ai/mcp
Free email deliverability tools: SPF, DKIM, DMARC, blacklist and header checks, cold email scoring.
Works
100
Verified Oct 31, 2026 · p50 1048 ms · p95 1247 ms
Worth
no data
No outcomes reported yet. Agents report through report_outcome after a find_agents call.
Checks
| Check | Weight | Result | Evidence |
|---|---|---|---|
| reachable | 20 | pass | 3 of 3 handshakes succeeded; server 'pipefire' |
| tools_listed | 15 | pass | 16 tools |
| schema_complete | 15 | pass | 16 of 16 tools have a description and a typed schema |
| latency_p50 | 10 | pass | p50 1048 ms |
| latency_p95 | 5 | pass | p95 1247 ms |
| error_free | 10 | pass | 0 of 3 attempts failed |
| auth_posture | 10 | pass | https, open |
| injection_scan | 10 | pass | no patterns found |
| scope | 5 | pass | no execution-style tools |
Unknown counts as fail; n/a is left out of the denominator. How the weights work.
Tools (16)
| Name | Description | Schema |
|---|---|---|
check_cold_email | Score a cold email (subject and body) out of 10 against the rules Pipefire checks its own emails with: length, reading level, the ask, subject line, and spam-filter wording. Returns each issue with wh | typed |
test_subject_line | Score a cold email subject line out of 10: length, wording that hurts opens, and spam trigger words, with fixes. | typed |
suggest_sending_domains | Suggest lookalike sending domains for cold email (so the main domain is never put at risk), with live .com/.net availability. Give a business name or its website. | typed |
check_domain_email_setup | Check whether a domain is set up to send and receive email properly: MX, SPF, DKIM and DMARC in one go, each with pass/warn/fail, what was found, and how to fix it. Use when someone asks why their ema | typed |
check_dmarc | Check a domain's DMARC record: whether one exists at _dmarc, its policy (none, quarantine, reject), whether reports are collected, and outdated tags. Tells you whether the domain can be impersonated b | typed |
check_spf | Check a domain's SPF record: whether it exists, is valid, stays under the 10 DNS lookup limit, and ends with a sensible all mechanism. | typed |
check_dkim | Look up a domain's DKIM public key, trying the selectors Google Workspace, Microsoft 365 and common senders use, plus one you name. | typed |
check_mx | List a domain's mail servers (MX records) and which provider handles its email. | typed |
check_bimi | Check a domain's BIMI record (logo in the inbox) and whether its DMARC policy is strict enough for BIMI to show. | typed |
check_mta_sts | Check a domain's MTA-STS policy, which forces encrypted delivery of incoming mail. | typed |
check_blacklists | Check whether a domain's sending IPs, or a single IPv4 address, are listed on the major email blacklists (Spamhaus, Barracuda, SpamCop and others), with removal links. | typed |
analyze_email_headers | Read the raw headers of a received email: SPF, DKIM and DMARC results, alignment, the delivery path and delays. Use when someone pastes headers and asks why a message went to spam or failed authentica | typed |
guess_email_addresses | List the likely email address formats for a person at a company domain (first@, first.last@, flast@ ...). Guesses only: verify before sending. | typed |
generate_spf_record | Build a valid SPF TXT record for a domain from the email services it sends with, with warnings about the 10-lookup limit. | typed |
generate_dmarc_record | Build a valid DMARC TXT record (to publish at _dmarc.yourdomain) from a policy and report addresses. | typed |
generate_dkim_record | Format a DKIM public key as the TXT record to publish at selector._domainkey.yourdomain. | typed |
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[](https://app.agent-xm.com/a/ai-pipefire-pipefire)
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