Skip to content

Supported Email Clients for MS Office 365 (with Exchange Online)

For users of the Email Sidebar on:


1 min read


Please find the list of compatible email clients below. Note, it’s recommended to update your email client to the latest version for the best experience with RG Email Sidebar.

Email Client Supports Sync Engine Supports Add-In
Microsoft Outlook 2016, 2019 for Windows Yes Yes+Pin*
Microsoft Outlook 2016, 2019 for Mac Yes Yes
Outlook on the web (
Yes Yes
Outlook app for iOS or Android Yes Yes
Any other desktop or mobile client  
that can be connected to Microsoft Exchange  
and supports folders and/or categories, e.g. iOS Mail app
Yes No

* What ‘Yes+Pin’ means? Sidebar Add-In can be ‘pinned’, so you do not need to reopen it each time browsing different emails or meetings in your email client.


Since RG Email Sidebar is a cloud solution, if used in, it can run in a browser. Please check browser’s compatibility and update your browser to the latest version for the best experience with RG Email Sidebar.

Browser Support
Chrome & Chromium-based Full
Safari (Including iOS version) Full
Android Mobile browser Full
MS Edge Compatible
Firefox Compatible
Opera Compatible
Internet Explorer 11, 10, 9 or lower No


If your email client is Microsoft Outlook for Windows, please make sure the latest version of MS Edge is installed in your system because it is used to render the Sidebar in Outlook


Back to top