You can migrate IMAP emails to Microsoft 365 without losing the folder structure by using a reliable IMAP migration tool that supports folder mapping and structure preservation. SysInfo IMAP Backup Tool provides a straightforward way to connect your IMAP account, preview mailbox folders, and transfer emails and attachments directly to Microsoft 365. Its folder mapping feature helps maintain the existing hierarchy, while advanced filtering lets you migrate selected emails based on date, sender, recipient, subject, or other criteria. The tool also supports batch migration, making it useful when multiple IMAP accounts need to be moved to Microsoft 365. It preserves email metadata, timestamps, read/unread status, attachments, and standard folder structures during migration. This approach reduces manual work and helps keep your mailbox organized after moving to Microsoft 365.
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