MailsDaddy Exchange to Office 365 Migration Tool

The MailsDaddy Exchange to Office 365 Migration Tool is a Windows desktop application designed to simplify migrating Exchange Server (on‑premises) mailboxes to Microsoft 365 (Office 365/Exchange Online). It supports all Exchange versions from 2003 through 2019, and Windows operating systems including Windows XP through Windows 11. Browse and add Exchange EDB (database) files, including corrupted ones, and migrate them directly into Office 365 mailboxes. Both private (priv.edb) and public (pub.edb) mailbox data are supported. It maintains the complete folder hierarchy (Inbox, Sent, Drafts, Tasks, Notes, Journals, etc.) and metadata like To, From, CC, BCC, subject, dates, and message bodies, including all attachments (JPEG, DOC, XLS, ZIP, MP4, etc.). The software offers automatic or manual mapping between source Exchange mailboxes and destination Office 365 mailboxes. Users can also upload a CSV file for bulk mapping. It supports resuming or re-running migrations using an incremental approach that skips already migrated items, reducing duplication and rework. The email filters (such as date-based filters) feature allow selective migration. For example, you could migrate only items from the last six months. Here users can track migration progress in real time and produces log reports, helping administrators monitor status and troubleshoot if needed. There is no file‑size limitations—EDB files of virtually any size can be processed. Both primary and archived mailboxes as well as shared mailboxes are supported. While focused on Exchange‑to‑Office 365 migration, MailsDaddy also offers broader solutions via its Exchange Server Suite, which supports migrations across Exchange servers, Office 365‑to‑Office 365 tenant migrations, and file‑type conversions (EDB, PST, OST, etc.). In summary, the MailsDaddy Exchange to Office 365 Migration Tool is a versatile, full‑featured solution ideal for organizations needing reliable, large‑scale, and low‑technical‑skill migration from on‑prem Exchange to Microsoft 365—with ample configuration controls, error‑handling, and reporting functionality.

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