smithjones24
Member
Yes, organizations can migrate IceWarp to Microsoft 365 without downtime by using a migration method that allows email data to be transferred while the source server remains active. IMAP-based migration tools usually copy mailbox data instead of deleting it, which helps avoid interruptions for users. For example, the SysInfo IMAP Backup Tool can connect to IceWarp mailboxes and transfer emails to Microsoft 365 gradually. I once saw a company perform this migration by first setting up Microsoft 365 accounts and then migrating emails step by step. During the process, users continued using their IceWarp mailboxes until the migration was fully verified. This approach helped the organization migrate IceWarp to Microsoft 365 smoothly without affecting daily email operations.
