Microsoft does not allow the use of modern add-ins in all Outlook versions.
Requirements
- A DialogShift account
- Exchange Server (Exchange Online or Exchange 2016+)
IMAP accounts are not supported.
Compatible Outlook Versions
Windows:- Outlook 2021 or newer
- Outlook 365 on Windows 10 20H2 or newer
- New Outlook
- Outlook App & Outlook 2024
- Outlook online (Firefox, Safari, Chrome and derivatives)
Installation
With Exchange Online
- Start Outlook on your computer
- Click All Apps in the top right and select Get Add-ins
- Enter DialogShift in the search field
- Select DialogShift Email Assistant and click Add
- The plugin is now available in the Add-ins tab under My Add-ins
With Exchange On-Premise
- Start the Outlook web interface in your browser and sign in with an account that has sufficient permissions
- Navigate to the overview of all installed apps
- Select the option to add a new plugin via URL and enter:

