jkoppee,
In the settings wizard are two options, one for "operator" and "email" none for SMS.
I dont understand your second question as far as what service the messages are coming from, and third question is they come from different phones mainky from SMS's coming in from Europe.
I used the phone in Europe with Telenor's SIM card and didnt have problems like this, I am strongly thinking it has something to do with AT&T.
Just thought I would try to see here if someone else had same problem here.
I apologize for my lack of knowledge of the
N95 as it is my first Nokia.
Thank you for the reply,
Bajo