The SysInfo Maildir Converter Tool offers a secure and efficient way to import Maildir files into Office 365. After launching the tool, add your Maildir or Maildir++ folders and view their contents using the preview feature. Select Office 365 as the saving option, provide your Office 365 credentials, and initiate the conversion. The software will accurately migrate all your Maildir emails, attachments, and other data to Office 365 without any data loss, preserving the original folder hierarchy and structure.