User faced an error while sending the message.
2844 | csMAPIClient.cpp>SendMail(2031): An error occurred while trying to send the message!! Error Code: 260
In the registry, verify the key HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Watchful Software\RightsWATCH. The String path must have '\' at the end. The String webservice should be pointing to http(s)://[ict_fqdn]/rightswatch/webservice
If this does not work, verify the DRM folder of the user. It should contain:
For some reason, RMS creates more than one GIC file, and ICT did not fetch the correct one.
On the ICT server: rename the DRM folder and try to send email again:
Verify the connection to the Exchange Server. You can use MFCMapi to do this test.
Please Start MFCMapi with a regular user and try to log in to the profile and open the mailbox.