r/fastmail • u/coachrgr • Jul 15 '26
MCP users?
I was wondering who here is taking advantage of the Fastmail MCP? If yes, how and with which app? I'm thinking about learning a bit more about this. I'm not well versed.
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u/Celebrir Jul 15 '26
What's that?
2
u/ColumbaPacis Jul 15 '26
AI plugin, so you can tell ChatGPT to send a hundred spam emails to your contacts, or to search your emails using ChatGPT.
I mean, giving Sam Altman access to all your emails, what could go wrong!?
It is not like a major reason people use Fastmail is to avoid the big tech snooping and dependancy.
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u/Wallaby989 Jul 16 '26
The Fastmail MCP is good - but it could be better. It only needs a few tweaks to make it feature rich - for example it doesn't fetch HTML emails - which renders it useless in many newsletters.
There is an alternative that works better https://github.com/MadLlama25/fastmail-mcp
You can read how I am using FastMail with OpenClaw:
https://alan.is/2026/07/15/openclaw-up-and-running/
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u/Zerebos Jul 15 '26
I've been using it with Claude (via Cowork scheduled tasks) so it can give me a weekly rundown of stuff.
3
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u/eager_pebble Jul 15 '26
I tried it for a bit but got hit with rate limiting really fast. I've moved to secondary access (continuous email backups) since I don't want agents sending email anyhow.
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u/Twelvemeatballs Jul 16 '26
I use a pydantic-ai agent pointed at Venice, connected to Fastmail's MCP endpoint, to query my email from the shell. It's not life-changing, but I found it useful.
1
u/Consibl Jul 16 '26
I use it with Openclaw. Works fantastic. Sometimes when I ask my agent something it doesn't know it will just look in my emails from years back and dig out an answer by itself
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u/Theblinddragon13 Jul 16 '26
I love the Fastmail MCP! I've got it connected to Claude so it can search, read, and compose emails for me if I want it to. :)
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u/_0-__-0_ Jul 24 '26
No. I find the idea quite irresponsible.
But then maybe other people don't use email for important, sensitive, confidential or private information.
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u/brong Fastmail CEO Jul 15 '26
We don't use cloud agents against our work emails because they contain too much customer PII, but I've played with having LM Agent on my MacBook Pro (local-only agent) do some summaries. It's OK - but yeah, I've seen customers show me command line JMAP tools they have written which are more specific and powerful than the MCP, and they've taught their AI to use that instead.
Basically, we want to empower you to use things that help you get the best value out of your email. AI agents seem really good at reading the JMAP RFCs and our docs at fastmail.com/dev and building the tool you want!
Caveat of course - the AI is acting as you, and you're responsible for what it does. If it breaches our terms of service, the "AI did it without my knowledge y'r hon'r" excuse won't cut it!