System Requirements


Windows 10 and 11


Desktop Outlook, Office 365 and versions 2013-2021

Mail Servers/Protocols

  • Microsoft Exchange
  • Office 365 service with the desktop Outlook application
  • Exchange Active Sync (EAS) ( or Hotmail)
  • IMAP is supported experimentally. Most functions work as intended, but there are occasional quirks. Best results are obtained with the newest versions of Outlook.

Incompatible configurations

  • "New" (universal) version of Outlook. Click here for details.
  • Non-Outlook email clients such as Eudora and Thunderbird
  • Lotus Notes, Domino and Connector
  • Apple Mac OS email clients
  • Web Mail without POP3 access
  • Zimbra, Open-Xchange, Zarafa and other 3rd party "Exchange compatible" servers
Last updated on May 10th 2023