So, just copy the code and implement it. It’s easy. It works in superadmin, so I guess you will have it added in the next 2 hours? Is that okay?
Seriously: You cannot add “myrelayhost” with 5 different credentials.
Imagine domain admin 1 adding myrelayhost with creds “bla:bla”. Domain admin 2 adds the same relayhost with the creds “bla2:bla2”. That’s the problem. 🙂
That’s neither possible for an admin.