Hi Robert Emmett,
I didn't get any browsers console errors.
It just doesn't has any response when I clicked save.
But i can save when choose "Send an email" or "send a notification".
Only can't save when select "Add recipient"
Possible due to version (SmarterMail Enterprise Build 7475 )bugs? Or:
FYI, this is smartermail version running on shared email server and it is a email hosting service provided by email hosting service provider.
Or could it due to the function is locked up by the service provider? They aren't sure and said may due to version bugs.
Thank you very much in advance for your help.