Mail Backup from IMAP to POP3

Hi, I'm in a situation whereas I need to backup my email from an IMAP server to a POP3 email client of my choosing. I'm hoping Dovecot can do such a task and is there a container to which I can run to set this up from ?

My IMAP email server is maxed and I need to dump all the emails off the IMAP to POP3 as to clear it up.

Thank You