Other providers

Anything that speaks IMAP with an app password. Add it in the settings window, or by hand:

[accounts.personal]
provider = "generic"
email    = "you@fastmail.com"
host     = "imap.fastmail.com"
# port   = 993   (default)

Then rubit-mcp-mail auth personal and paste the app password (or do both from the settings window).

Known hosts

Anything else that speaks IMAP works too — provider = "generic" plus a host is the whole contract.

Without storing the password

To avoid storing the password at all, set RUBIT_MCP_MAIL_PASSWORD_<ACCOUNTNAME> in the environment instead — the account name uppercased. For [accounts.personal] that is RUBIT_MCP_MAIL_PASSWORD_PERSONAL.

Folder roles

Folders are addressed by role — inbox, sent, drafts, junk, trash, archive — so you never need to know that Outlook calls it Junk Email while Gmail calls it [Gmail]/Spam. Raw folder names work too.

Roles come from the server's RFC 6154 SPECIAL-USE flags where available. Outlook.com does not advertise them, so there names are matched instead — accent-insensitively, and including the localizations Outlook ships (Spanish, Catalan, French, German, Italian, Portuguese), so a mailbox with Elementos enviados still resolves to sent. Matching is done on the leaf name, so [Gmail]/Sent Mail resolves too.

Run rubit-mcp-mail doctor to see exactly how your folders were classified; any folder that comes out as other can still be addressed by its raw name.