Provider-run MCP · checked 2026-10-06

Emailgents vs Fastmail's MCP server

Official, well built, Fastmail only.

Fastmail's own MCP server gives agents access to a Fastmail account over JMAP with selectable access levels. If Fastmail is your only mailbox, it is an excellent and native option.

It cannot see any other provider, so a second Gmail or an iCloud address still needs its own connector in every agent.

Emailgents covers Fastmail over IMAP alongside Gmail, Outlook, iCloud and the rest, through one connection and one access log.

Side by side

Column two reflects Fastmail's MCP server's own public documentation on 2026-10-06.

 EmailgentsFastmail's MCP server
Email providersGmail, Outlook/Microsoft 365, iCloud, Yahoo, Fastmail, AOL, Zoho, GMX, WEB.DE, any IMAPFastmail only
iCloud MailYes, app-specific passwordNo
Any IMAP serverYes, own IMAP engineNo
Several accounts in one connectionYes, all mailboxes behind one URLFastmail accounts only
Hosted MCP server (no local install)Yes, emailgents.com/mcp with OAuthYes
REST APIYes, scoped keysJMAP API
Cannot send, move or deleteYes; only read/starred flags can changeRead-only level available
Per-call access log for the userYes, Activity pageNot documented
Set-up without writing codeYes, sign in and approveYes

Pricing, as documented: Included with a Fastmail subscription.

Choose Fastmail's MCP server when

  • Fastmail is your only mailbox.
  • You want JMAP-native features such as masked email management.

Choose Emailgents when

  • You have Fastmail and something else.
  • You want one place to see what every agent read across all accounts.

Other comparisons

Your agents can read mail in five minutes.

One account, as many mailboxes as you need, every agent you run.