I think this has been going on for some time. Each time we run a publish duplicate emails are sent. I think one is associated with the group job. This is Build 4.9.81. Repository SQL Server 2012.
Sending emails from the Group Job and the Publish job. Is this right?
Release : 4.9
Component : CA Test Data Manager - TDM Web Portal
This is working as designed.
Refer to this documentation link for Publishing Group jobs, it must always have an email address.