> I added all of the internal valid email address to the > whitelist to make > sure that all of the people at work can send EVERYTHING to each other. > However this also lets all of the spam that uses mail > spoofing through.
Not sure if I read your question right, but isn't that more of an MTA function, i.e only accept mail from the outside with an @yourdomain.com address if it's sent using smtp-auth etc..? Paul
