Best Way to Transfer Pegasus Mail to Office 365

Many people still use Pegasus Mail, but collaboration becomes a challenge when teams move to Microsoft 365. I personally needed to migrate Pegasus Mail to Office 365 so my emails could sync across Outlook, Teams, and mobile devices. Manual conversion felt unreliable because Pegasus email formats aren’t natively supported. After reading multiple user experiences, I tested the SysInfo IMAP Backup Tool and found it quite efficient. It allowed selective migration with date filters, which helped me avoid transferring unnecessary old emails. The process didn’t require complex configuration, and the folder hierarchy remained intact. If you’re moving from a legacy client like Pegasus, using an IMAP-based tool seems to be the safest path.

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