Has anyone here tried to migrate Pegasus Mail to Office 365 and struggled with mailbox formats? Pegasus stores mails in PMM/CNM/EML, which aren’t supported by Microsoft 365. I’ve been stuck testing manual methods, but the reliability isn’t great, and the risk of losing structure is high. Most blogs suggest mapping via EML upload through Outlook, but that’s tedious and unpredictable for bulk migrations. After experimenting with tools, the smoothest route I found involved the SysInfo IMAP Backup Tool, which handles migration directly via IMAP and avoids multi-step conversions. The interesting part is that it keeps the original email formatting, folder hierarchy, attachments, and meta-data intact. What helped me most was its Bulk Mailbox Migration feature; it supports multiple accounts without file-size limitation and gives complete control via filters. If you prefer secure compliance via Microsoft 365, and don’t want to deal with messy manual conversions, this approach actually works for enterprises and even personal usage.

Read More: https://www.sysinfotools.com/blog/migrate-pegasus-mail-to-office-365/