Hi, I am planning to setup a network with a OpenBSD/SPAMD firewall, and an internal POSTFIX server with SASL SMTP AUTH.
While think about it, I realized that I have a problem here. Whenever a mobile user wants to send mail (relaying) through the POSTFIX server, he will have to go through the greylist process. I can tell my users to try at least 3 times ( in a period of 30 minutes) to send email messages every time they change IP address. But then, I will end up with a bunch of whitelisted dynamically allocated IPs by various ISPs. So my question is: what is the best way to deal with this kind of situation. Should I reduce the value of whiteexp ? Has anybody thought of way of cleaning such road-warrior addresses on a daily basis ? To be fare, these address should not stay in the whitelist for long, since they change hands quite often!! Any comments, suggestion, links would be appreciated. Best regards, Jose -- Be Yourself @ mail.com! Choose From 200+ Email Addresses Get a Free Account at www.mail.com
