If you're new to high-volume mailing --not sure what goes into acquiring your own IPs and domains-- this video with VoloMP Joe might reduce the confusion for you. If you're a mailing rockstar maybe just watch it to see what color green Volo HQ is: http://www.volomp.com/index.php?page=7&item=53
Did you guys ever get rid of that horribly convoluted iptables packet mangling crap your software does for inbound traffic to 80/25?
No more nat rules, for quite some time now. I want to say years, but frankly I don't remember exactly how many: Many things changed over the last half a dozen years. We introduced external MTAs, smartproxies, integration with several ad networks. In the past six months we changed the way nodes in a cluster communicate, for instance.. There's always stuff going on under the hub, whether it's bugfixing or redesign or new stuff.
