Hello list. I was wondering, I have my spammer relay controls on so spammers can't of course steal smtp service from me, but rather than allowing a whole domain to use my smtp, is it possible to allow only a certain user on my system to not only download their pop mail, they can already do this, but to use my mail smtp relay to send their mail? I would just put in psi.net but this would allow anyone from that domain to use the smtp on my server. Thanks