Migrate Emails Using imapsync

Migrating emails from one mailbox to another could be a very frustrating task.
Luckily there is a free tool called “imapsync” which uses as a proxy that will fetch your emails from the old mailbox and will push them to the new one, and that’s basically a straightforward IMAP-based migration.

Let’s start with installing –

yum install epel-release
yum install imapsync

Execute it from the shell with the appropriate variables –

imapsync --host1 OLD_HOST_IP  \
   --user1 OLD_MAIL_BOX      \
   --password1 OLD_MAIL_BOX_PASSWORD       \
   --ssl1     \
   --host2 NEW_HOST_IP    \
   --user2 NEW_MAIL_BOX      \
   --password2 NEW_MAIL_BOX_PASSWORD   \
   --ssl2

If the connection is using SSL/TLS, use the flag “ssl”. This will default to port 993.

If the connection is using STARTTLS, use the flag “tls”. This will default to port 143.