For instance , joe at example.com might post as joeNOS at PAM.invalid.example.com .
Users who want to receive legitimate email regarding their posts or Web sites can alter their addresses so humans can figure out but spammers can not .
Joe at example.com might post as joeNOS at PAM.invalid.example.com .
Users who want to receive legitimate email regarding their posts or Web sites can alter their addresses so humans can figure out but spammers can not .