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.
| Emailgents | Fastmail's MCP server | |
|---|---|---|
| Email providers | Gmail, Outlook/Microsoft 365, iCloud, Yahoo, Fastmail, AOL, Zoho, GMX, WEB.DE, any IMAP | Fastmail only |
| iCloud Mail | Yes, app-specific password | No |
| Any IMAP server | Yes, own IMAP engine | No |
| Several accounts in one connection | Yes, all mailboxes behind one URL | Fastmail accounts only |
| Hosted MCP server (no local install) | Yes, emailgents.com/mcp with OAuth | Yes |
| REST API | Yes, scoped keys | JMAP API |
| Cannot send, move or delete | Yes; only read/starred flags can change | Read-only level available |
| Per-call access log for the user | Yes, Activity page | Not documented |
| Set-up without writing code | Yes, sign in and approve | Yes |
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.
Sources
Other comparisons
- vs Claude's Gmail connectorOne Google account, inside Claude only.Assistant connector
- vs ChatGPT's Gmail and Outlook appsTwo providers, inside ChatGPT only.Assistant connector
- vs ComposioA developer toolkit for hundreds of apps; email is one of them.Integration platform
- vs Zapier MCPThousands of Zapier actions, exposed to agents.Integration platform
- vs Pipedream MCPDeveloper integration platform with MCP endpoints per app.Integration platform
- vs NylasThe developer email API, now with an MCP server.Email API