Pipefire email deliverability tools
Check email setup, diagnose delivery problems, and score cold emails for spam filters.
Diagnoses why emails go to spam by checking SPF, DKIM, DMARC, MX records and blacklists. Analyzes email headers, scores cold emails against spam triggers, and generates DNS records for proper email authentication.
Try asking Muse: "Why are my emails going to spam and how do I fix my domain's email setup?"
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Source: Found in the official MCP Registry (ai.pipefire/pipefire) · First listed October 29, 2026
Last 24 hours
Each bar is one check, every 15 minutes. Green means it answered. Last checked 1 h ago.
Is it safe to connect?
What Muse can see: It does not ask you to sign in, so it cannot see your accounts. It only sees what Muse sends it from your request.
Before it acts: Read what Muse plans to do before you approve it, and remove the app from Muse when you stop using it.
musedirectory.ai is not part of Meta. More about how Muse handles your information
How to add it to Muse
Not in Muse's Connectors list yet, but Muse can still use it. Copy the request below and paste it into Muse. Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
https://pipefire.ai/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
Also use it in ChatGPT or Claude
Pipefire email deliverability tools is a remote MCP server, so any assistant that can add a custom connector by link can use it. Same link, same tools.
Add it to ChatGPT
- 1
Open ChatGPT settings
In ChatGPT, open Settings, then Connectors (called Apps & Connectors on some accounts).
- 2
Turn on developer mode
Under Advanced settings, switch on Developer mode. That is what lets you add a connector by link.
- 3
Create the connector
Choose Create, give it a name, paste the link as the MCP server URL, and save. If it needs a sign-in, ChatGPT asks for it here.
- 4
Use it in a chat
Start a chat, open the tools menu, pick the connector, and ask. ChatGPT asks before it runs a tool the first time.
Custom connectors need a paid ChatGPT plan, and on Team, Enterprise and Edu accounts only an admin can add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in ChatGPT
Add it to Claude
- 1
Open Claude settings
In Claude, open Settings, then Connectors.
- 2
Add a custom connector
Choose Add custom connector, give it a name, and paste the link.
- 3
Connect and use it
If it needs a sign-in, Claude sends you to it. Then turn the connector on in a chat from the tools menu and ask.
Custom connectors are available on paid Claude plans; on Team and Enterprise accounts an admin may need to add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in Claude
https://pipefire.ai/mcpWhat people ask Muse to do
Technical details: safety screening, tools, response time and recent checks
Response time at the last check: 2262ms. Worked in n/a of checks over 30 days.
Screening · October 29, 2026
Screened, no issues found
Screening looks for known threats and hidden instructions at the time of the check, and runs again weekly and whenever the tool list changes. It cannot see the server's code, so only connect what you need and review what Muse asks to do. How screening works.
Tools · 16
check_domain_email_setupCheck 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 emcheck_dmarcCheck 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.check_spfCheck 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_dkimLook up a domain's DKIM public key, trying the selectors Google Workspace, Microsoft 365 and common senders use, plus one you name.check_mxList a domain's mail servers (MX records) and which provider handles its email.check_bimiCheck a domain's BIMI record (logo in the inbox) and whether its DMARC policy is strict enough for BIMI to show.check_mta_stsCheck a domain's MTA-STS policy, which forces encrypted delivery of incoming mail.check_blacklistsCheck 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.analyze_email_headersRead 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.check_cold_emailScore 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.test_subject_lineScore a cold email subject line out of 10: length, wording that hurts opens, and spam trigger words, with fixes.suggest_sending_domainsSuggest 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.guess_email_addressesList the likely email address formats for a person at a company domain (first@, first.last@, flast@ ...). Guesses only: verify before sending.generate_spf_recordBuild a valid SPF TXT record for a domain from the email services it sends with, with warnings about the 10-lookup limit.generate_dmarc_recordBuild a valid DMARC TXT record (to publish at _dmarc.yourdomain) from a policy and report addresses.generate_dkim_recordFormat a DKIM public key as the TXT record to publish at selector._domainkey.yourdomain.Link
https://pipefire.ai/mcpQuestions about Pipefire email deliverability tools in Muse
How do I connect Pipefire email deliverability tools to Muse?
Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Pipefire email deliverability tools to help me. It is a free service with an MCP server at https://pipefire.ai/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
Is Pipefire email deliverability tools working right now?
At the last check (October 29, 2026, 16:21 UTC) the endpoint was working, answering in 2262ms. It is checked every 15 minutes.
Is Pipefire email deliverability tools safe to connect to Muse?
It was screened on October 29, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
What can Pipefire email deliverability tools do in Muse?
It exposes 16 tools, including check_domain_email_setup, check_dmarc, check_spf, check_dkim. For example, you could ask Muse: "Why are my emails going to spam and how do I fix my domain's email setup?"
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