For a reliable migration, it helps to use a method that lets you review the OLM data before transferring it to Office 365. A dedicated converter can reduce manual work and make it easier to handle emails, attachments, and mailbox folders in an organized way. Aryson OLM Converter Tool provides options to load OLM files, preview mailbox data, select required folders, and migrate the selected information to Office 365. It also supports bulk OLM conversion, date filtering, duplicate removal, attachment handling, and preservation of the original folder hierarchy. These options can be useful when the mailbox contains a large amount of data or when only specific information needs to be transferred. If you need to migrate OLM emails to Office 365, reviewing the source mailbox first can help confirm that the required emails and folders are included before starting the migration. The tool supports multiple OLM files and provides a structured workflow for transferring mailbox data. It is compatible with all versions of Windows and Mac, so users can perform the migration from either environment. Keeping the original OLM files as a backup is also recommended until the Office 365 mailbox has been checked after migration.

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