Relevant Product: Exclaimer Cloud - Signatures for Office 365
The Exclaimer Cloud client-side signatures are not downloading in an environment that has a proxy server configured and requires user authentication.
You see this error message, logging against Event ID 29004:
You receive this error message when the Exclaimer software cannot connect to the Exclaimer Cloud due to a proxy authentication error. This is visible within the Event Viewer.
Follow these steps to resolve this issue:
- Go to C:\Windows\Microsoft.Net\Framework\v4.0.30319\Config\
- As an Administrator, edit the file: machine.config
- Add the following to the [configuration] section
Save the file.