How to Migrate from Microsoft 365 to IMAP When IMAPSync Won’t Authenticate
You have a mailbox to move from Microsoft 365 to a new IMAP host. The obvious tool for the job is IMAPSync — it has moved millions of mailboxes and it is the first thing most administrators reach for. So you install it, set your source server to outlook.office365.com on port 993, run it, and … Read more