Fastmail mailbox clean-up

Find the biggest groups in your Fastmail mailbox.

Analyse mail read-only, sort sender groups by message count or storage used, protect important contacts and move only confirmed selections to Trash.

Get seven-day access — £9.99Try the safe demo

Connection settings

Secure IMAP server

imap.fastmail.com
Port 993 with SSL/TLS.

Sign-in details

Use your full mailbox address and an app-specific password with Mail access.

Safety: start with preview mode. The app never empties Trash and does not store your mailbox password.