Greetings;
On Mon, 2014-08-11 at 19:50 -0500, kb9mwr@gmail.com wrote:
I'd still like to hear from anyone running a SMTP server on Linux, not NOS.
I have to running axMail. What I use is postfix and I bind the outbound SMTP sessions in main.cf to my 44-net IP. My ISP can't see what port IPEncap uses, so by default, outbound and inbound work perfect - I can tell by the volume of spam that tries to filter its way in daily. Also you can tell it works by receipt of this reply. The two lines I use are:
inet_interfaces = 44.88.0.9 smtp_bind_address = 44.88.0.9
I don't know if exim, sendmail, or qmail have this ability (I wouldn't see why not) but I've used postfix for years and it's been a great MTA. It works well with procmail, spamassassin, postgrey, and other plugins.