how to start a sync from terminal using the excellent https://imapsync.lamiral.info/
./imapsync --host1 from.host.com --host2 to.host.com --user1 user@from.com --password1 'password_here' --user2 admin@travngo.com --password2 './imapsync --host1 from.host.com --host2 to.host.com --user1 user@from.com --password1 'password_here' --user2 user@to.com --password2 '8C6}1wahDb2*''