I was trying to change my current IMAP mail server (hMailServer) to a new IMAP mail server (Dovecot). Hence, this involves transferring all mails across to the new server. I tried to use imapsync as this would allow incremental imap transfer. However, I got some errors when running the following command.
imapsync --host1 example.com --user1 firstname.lastname@example.org --passfile1 /etc/secret1 --host2 localhost --user2 harryw --passfile2 /etc/secret2
Error login: [example.com] with user [email@example.com] auth [CRAM-MD5]: 2 No Unsupported authentication mechanism.
I do not use any SSL connection on the current mail server. I wonder if there is a way of getting around this problem.
Any help is very much appreciated.