Help understanding outgoing connection attempt
pacneil at linuxgeek.net
Sat Apr 17 16:40:54 PDT 2004
Stewart Stremler said:
> begin quoting Karl Cunningham as of Sat, Apr 17, 2004 at 09:56:34AM
>> Yes, I agree, it will use a random port. But isn't that only true for
>> connections initiated from this machine? If so, why would Postfix have
>> attempted to initiate an outgoing connection to the same host it just
>> through rejecting a message from?
> Ah, I misunderstood the question.
> I don't know postfix.
> However, let's pretend I just provided a totally bogus and misleading
> #include <stock_responses/totally-bogus/misleading/answer.txt>
> Now, someone will be along in just a minute to gleefully correct me. You
> just watch.
I do know Postfix, but I can only guess at the answer. If postfix rejected
a connection from a remote server, then it is likely sending a bounce
message. That bounce message will connect from a random port to port 25 on
the remote server.
Neil Schneider pacneil_at_linuxgeek_dot_net
Key fingerprint = 67F0 E493 FCC0 0A8C 769B 8209 32D7 1DB1 8460 C47D
Fires can't be made with dead embers, nor can enthusiasm be stirred by
spiritless men. Enthusiasm in our daily work lightens effort and turns
even labor into pleasant tasks. --James Baldwin
More information about the KPLUG-List