If you want to Move/Import IMAP email to AOL Mail account with all important data. So I personally suggest using the most popular and creative third-party tool that's called eSoftTools IMAP Backup and Migration Software. With the help of this Software, you can rapidly Move/Import IMAP email to your AOL Mail account and another. It has a bulk conversion option that allows you to Move or Import multiple emails at one time without any errors.

Read more:- https://www.esofttools.com/imap-backup-migration-tool.html