Lumman

Fastmail

Fastmail mailboxes connect to Multi Mail with an app password made in Fastmail's settings.

Add to Claude

Connecting it

5 steps
  1. 1

    In the window Claude opens, choose Fastmail, type your Fastmail address and press Continue.

  2. 2

    Sign in at app.fastmail.com and go to Settings, then Privacy & Security.

  3. 3

    In Connected apps & API tokens, click Manage app passwords and access.

  4. 4

    Click New app password, keep Mail, Contacts & Calendars, and click Generate password.

  5. 5

    Paste the app password, press Connect Fastmail mailbox, then Approve.

Limits

  • Only fastmail.com and fastmail.fm addresses connect. Your own domain at Fastmail does not.
  • App passwords need a Fastmail plan that includes them - Basic does not.
  • Multi Mail reaches no filters, vacation responder or signature at Fastmail, and deletes no draft.
  • Disconnecting deletes our copy of the password, which works until you delete it in Fastmail's settings under Privacy & Security.