Recent content by thfc

my machine is macbook pro lion , i am using micros soft outlook, internet connection is via talk talk, this problem just came out of nowhere, and emails seem to be getting delivered thanks for your help

every email i send out i get error code 17099 5.1.2 or other punctuation after the recipient's email address. m42sm71678599eef.0 and say mail could not be sent, it seems the mail however is arriving how can i solve the problem