I want to suggest using eSoftTools IMAP Backup and Migration Software which helps you to migrate/import IMAP emails to webmail easily. It also converts all emails from IMAP to Outlook PST, EML, EMLX, MSG, HTML, MHTM, and other formats. And all technical and nontechnical users can easily operate this software because it is designed with a great user interface.
Know more:- Migrate/Import IMAP Email into Webmail
Know more:- Migrate/Import IMAP Email into Webmail