I am currently migrating a website, and my usual method is working with mail clients, and copy the old mailbox to the new server mailbox.
But, if you have a website, with multiple mailboxes, and those mailboxes have numerous folders, the work usually takes all day.
I have searched the Internet for a far more easy and faster way, preferably open-source, but most tools are ancient, and the Q/A here are years old.
Wat is the faster and easier way of migrating mailboxes?
Paid tool:
Free Tool
Note:
I have root access on the destination server, and not on the source.
I downloaded the e-mails with the following settings
mail.DONAINNAME.com
: IMAP (for receiving)smtp.DOMAINNAME.com
: SMTP (for sending)