A simple way to migrate IceWarp to Microsoft 365 is through IMAP migration. Because IceWarp supports IMAP, emails can be transferred directly to Microsoft 365 using a migration tool. Tools like SysInfo IMAP Backup Tool let you sign in with IceWarp IMAP credentials, preview mailbox folders, choose Microsoft 365 as the destination, and start the migration. The tool moves emails with attachments and keeps the original folder. Read more: https://www.sysinfotools.com/blog/migrate-icewarp-to-microsoft-365/