Yota IMAP Migration Tool is a software solution designed to help users transfer emails between different IMAP-enabled email accounts efficiently. It is particularly useful for migrating emails from one email provider to another, such as from Gmail to Outlook, Yahoo to Office 365, or any other IMAP-supported platform.

https://yotasoftware.com/blogs/backup-thunderbird-emails/
https://yotasoftware.com/blogs/sync-issues-and-local-failures-in-outlook/
https://yotasoftware.com/blogs/import-old-emails-into-gmail/
https://yotasoftware.com/blogs/export-thunderbird-to-pst/