Basic Mailbox Transfer
imapsync --host1 mail.old.com --user1 user@old.com --password1 "pass1" --host2 mail.new.com --user2 user@new.com --password2 "pass2" --ssl1 --ssl2 --nofoldersizes💡 Run imapsync multiple times — each run syncs only new messages. Perfect for zero-downtime migration.
⚠️ Don't switch MX records until the transfer is complete. Run imapsync one final time after switching MX.