I have a colo server running a few websites and using postfix for a few
domains. The server came with a few IP addresses, but I'm using the main
address only and hanging on to the other for when we need HTTPS.
A while back I noticed some mails in my deferred queue that had messages
saying that the mail was held because the sending IP was in a block
list. However, the IP it listed was *not* the main IP I use, the one
that I intend for postfix to do it's work on.
I have this in my main.cf:
main.cf:inet_interfaces = 64.69.38.41,127.0.0.1
and I hook up the main smtp process in master.cf like this:
master.cf: -o smtp_bind_address=64.69.38.41
And yet, I still occasionally see mail sitting in the deferred queue
saying that 64.69.38.45 is on a block list.
What am I missing? How are these servers seeing my mail connection as
coming from the .45 address instead of the .41?
Thanks,
Ben
