2009/9/30 Postfix User <post...@linuxnet.ca>: > I've since implemented an iptables SNAT rule as a temporary workaround > as I really needed this working this morning. I doubt this will > interfere with the verbose logging output. What exactly is it I should > be looking for?
Can you show us some proof that it's not working? Eg. send mail via that machine and show the headers that appear on the receiving end. If you really want to use iptables, I'd use it for logging first. Just some trivial rules. iptables -I OUTPUT -s 142.22.75.146 -p tcp --dport smtp -m state --state NEW iptables -I OUTPUT -s 142.22.75.147 -p tcp --dport smtp -m state --state NEW Send some mail and check your packet counters with `iptables -L OUTPUT -vn` I don't doubt that you're seeing some sort of problem, but we need more evidence to believe there's actually something broken/wrong with postfix. I wouldn't bother turning on verbose logging just yet; I'm not sure it'll show the source address, and it's a lot of information to wade through (and noone here will read through it unless they're sure there's a problem that needs it).
