ai.pipefirePublished by pipefire.aiOfficial publisherv1.0.0Updated Oct 25, 2026
Free email deliverability tools: SPF, DKIM, DMARC, blacklist and header checks, cold email scoring.
Pipefire email deliverability tools's hosted MCP server (pipefire.ai), published by pipefire.ai; no sign-in required; Streamable HTTP; 16 tools.
No AI overview yet: these facts come from the registry entry and the server itself.
Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.
Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.
Read https://sourceweft.com/mcp/ai.pipefire%2Fpipefire/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.Add this to your client's mcpServers config.
{
"mcpServers": {
"pipefire-email-deliverability-tools": {
"type": "http",
"url": "https://pipefire.ai/mcp"
}
}
}Email authentication check (MX, SPF, DKIM, DMARC)
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 email goes to spam, whether their domain is set up right, or before sending cold email.
domainrequiredselectorDMARC check
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DMARC record: whether one exists at _dmarc, its policy (none, quarantine, reject), whether reports are collected, and outdated tags.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 by email.
domainrequiredSPF check
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.
domainrequiredDKIM check
Look up a domain's DKIM public key, trying the selectors Google Workspace, Microsoft 365 and common senders use, plus one you name.
domainrequiredselectorMX lookup
List a domain's mail servers (MX records) and which provider handles its email.
domainrequiredBIMI check
Check a domain's BIMI record (logo in the inbox) and whether its DMARC policy is strict enough for BIMI to show.
domainrequiredMTA-STS check
Check a domain's MTA-STS policy, which forces encrypted delivery of incoming mail.
domainrequiredEmail blacklist check
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.
targetrequiredEmail header analyzer
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 authentication.
headersrequiredCold email checker
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 why it matters and how to fix it.
bodyrequiredkindsubjectrequiredSubject line tester
Score a cold email subject line out of 10: length, wording that hurts opens, and spam trigger words, with fixes.
subjectrequiredSending domain generator
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.
brandrequiredEmail permutator
List the likely email address formats for a person at a company domain (first@, first.last@, flast@ ...). Guesses only: verify before sending.
lastfirstrequireddomainrequiredmiddleSPF record generator
Build a valid SPF TXT record for a domain from the email services it sends with, with warnings about the 10-lookup limit.
amxip4ip6strictincludesprovidersDMARC record generator
Build a valid DMARC TXT record (to publish at _dmarc.yourdomain) from a policy and report addresses.
ruadomainrequiredpolicyrequiredsubdomainPolicyDKIM record generator
Format a DKIM public key as the TXT record to publish at selector._domainkey.yourdomain.
keyTypeselectorrequiredpublicKeyrequired72% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
Publish an icon in the registry entry.
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.