You have deployed the Exclaimer Cloud Outlook Add-in (Preview), and you notice that your signatures are not showing on Outlook desktop, but they are showing on Outlook Web without any issue.
The Exclaimer Cloud Outlook Add-in (Preview) feature uses a connected service which is only available when the option for Optional connected experiences is enabled in Outlook.
To resolve this issue, make sure the Optional connected experiences option is enabled in Outlook.
To do so:
- Log in to the Outlook Desktop App.
Click File from the ribbon bar.
- From the left-hand side, click Options.
The Outlook Options window is displayed.
- From the left-hand side, click Trust Center then click Trust Center Settings....
From the left-hand side, click Privacy Options, then click Privacy Settings...
- Select the Turn on optional connected experiences option:
- Click OK to save your changes.