I wanted to set the Group E-mail ID for one of my groups, but it refuses to save with a particular e-mail address.
Here are fake/equivilant details to help explain...

The e-mail address that I want to put in there is itsupp@lists.place.com

When I try this one, I get the error message, " Group updation failed".

When I try it with any other e-mail address in that field, it works just fine and gets saved.
For example, I can use these and it works just fine...
itsupp@place.com
AnyOther@lists.place.com

So, neither the domain name nor the length of the address are the problem.

I suspect that I have the address itsupp@lists.place.com entered somewhere else within the SDP system, and that may be causing it to block me from putting it in here, but I'm not sure where that would even be.

Any help?