Pipefire email deliverability tools

Name: Pipefire email deliverability tools
Author: ai.pipefire

MCP serverMCP

Free email deliverability tools: SPF, DKIM, DMARC, blacklist and header checks, cold email scoring.

by ai.pipefirehomepage ↗v1.0.0

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Everything here was measured by our prober or read from a registry. Nothing is self-reported.

30-day availability10/10 checks ok

30 days ago

when	check	result	http	latency	detail
6 h ago	mcp initialize	ok	200	152 ms	server pipefire 1.0.0 · protocol 2025-06-18 · 16 tools
12 h ago	mcp initialize	ok	200	173 ms	server pipefire 1.0.0 · protocol 2025-06-18 · 16 tools
19 h ago	mcp initialize	ok	200	72 ms	server pipefire 1.0.0 · protocol 2025-06-18 · 16 tools
26 h ago	mcp initialize	ok	200	78 ms	server pipefire 1.0.0 · protocol 2025-06-18 · 16 tools
32 h ago	mcp initialize	ok	200	176 ms	server pipefire 1.0.0 · protocol 2025-06-18 · 16 tools
2 d ago	mcp initialize	ok	200	172 ms	server pipefire 1.0.0 · protocol 2025-06-18 · 16 tools
2 d ago	mcp initialize	ok	200	93 ms	server pipefire 1.0.0 · protocol 2025-06-18 · 16 tools
2 d ago	mcp initialize	ok	200	83 ms	server pipefire 1.0.0 · protocol 2025-06-18 · 16 tools
3 d ago	mcp initialize	ok	200	93 ms	server pipefire 1.0.0 · protocol 2025-06-18 · 16 tools
3 d ago	mcp initialize	ok	200	121 ms	server pipefire 1.0.0 · protocol 2025-06-18 · 16 tools

Tools observed via MCP handshake

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
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DMARC record: whether one exists at _dmarc, its policy (none, quarantine, reject), whether reports are collected, and outdated tags.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
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.
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.
check_mx — List a domain's mail servers (MX records) and which provider handles its email.
check_bimi — Check a domain's BIMI record (logo in the inbox) and whether its DMARC policy is strict enough for BIMI to show.
check_mta_sts — Check a domain's MTA-STS policy, which forces encrypted delivery of incoming mail.
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
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 m
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-fi
test_subject_line — Score a cold email subject line out of 10: length, wording that hurts opens, and spam trigger words, with fixes.
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 websit
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.
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.
generate_dmarc_record — Build a valid DMARC TXT record (to publish at _dmarc.yourdomain) from a policy and report addresses.
generate_dkim_record — Format a DKIM public key as the TXT record to publish at selector._domainkey.yourdomain.

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Official MCP Registryai.pipefire/pipefire

first seen 3 d ago · fetched 3 d agoopen ↗

Field history (6 recent events)

3 d ago · declared · summary → "Free email deliverability tools: SPF, DKIM, DMARC, blacklist and header checks, cold email scoring."
3 d ago · declared · description → "Free email deliverability tools: SPF, DKIM, DMARC, blacklist and header checks, cold email scoring."
3 d ago · declared · publisherName → "ai.pipefire"
3 d ago · declared · homepageUrl → "https://pipefire.ai/mcp-server"
3 d ago · declared · version → "1.0.0"
3 d ago · declared · protocols → ["mcp"]

Pipefire email deliverability tools

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