Secure IMAP server
imap.dreamhost.com
Port 993 with SSL/TLS.
DreamHost Email mailbox clean-up
Find the biggest groups in your DreamHost Email mailbox.
Analyse mail read-only, sort sender groups by message count or storage used, protect important contacts and move only confirmed selections to Trash.
Connection settings
Sign-in details
Use your full mailbox address and your mailbox password.
Official instructions
Safety: start with preview mode. The app never empties Trash and does not store your mailbox password.