I have a known user that I have been sending/receiving email from him for several years. now, I do not receive any emails that he sends to me. if he uses my gmail account, the email gets forwarded to thunderbird, and I see the email with the gmail address in my inbox. His emails addressed to my sbcglobal address are not in my inbox, or in my junk folder. I do not have any block lists, but I use Spam Assassin. is there a technique to solve this problem? his is the only email address I am not receiving.