Turn off mail triggering for particular user in SAP CLM

You cannot just turn off mail notifications for a particular user in CLM but you could do some workarounds.

Make sure that when the user is added to a document it is as a silent user or if they really do not have to receive any email from CLM you could just change their email address in their user profile to a dummy one so it will never be sent to this person.

What about a custom rule on the Mail Configuration object:

name.surname@co.com=delete;@all=send;