By using eSoftTools IMAP Backup and Migration Software you can smoothly download IMAP emails to Thunderbird without damaging any data. It has a bulk migration function that enables to conversion and migration of multiple IMAP emails to Thunderbird at one time without limitations. This software is easily operated by all technical and non-technical persons.
Know more:- https://www.esofttools.com/imap-backup-migration-tool.html