Thank You Harald,
I hate to get railed upon so I am reluctant to show my ignorance. Most of
the people that can help me are really very good at this stuff and are
impatient with no nothing folks like me.
You seem to know what you are doing and are more gentle with us "just
learning" types.
I have folks that use my service from other domains such as "att.net" and
"bellatlantic.net" . These are the folks that are going to be doing
"relaying"? If so how do I get their varying IP addresses to put in the
tcp.smpt file since that address could vary considerably.
I think I took out the rcpthosts file because (of my ignorance) then I
would have the most freedom to check mail from anywhere? I also use
sqwebmail (works great) to check for mail. Could I be infringing upon
receipt or sending of mail throught the use of these setup files?
David Susen
Harald Hanche-Olsen writes:
> - <[EMAIL PROTECTED]>:
>
> | I'm running qmail on my little Linux box with a couple of folks using it
> | as there postoffice. I've noticed in the maillog a continueing entry
> | for messages to someone called "[EMAIL PROTECTED]". The qmail pop logs:
> | "Sorry_I_couldn't_find_any_host_by_that_name._(#4.1.2)/".
> |
> | So, what's happening? Who's the smart guy?
>
> That information is also in the logs. Look in the logs for the line
> saying "delivery zzzz: msg yyyy to remote [EMAIL PROTECTED]". Then
> search backwards from this point in the log for "info msg yyyy: bytes
> nnn from <address> qp qqqq uid uuuu". The <address> is the envelope
> sender. If the "uid uuuu" points to a local user, you may have your
> smart guy. If it's the uid of the alias user, you need to trace the
> message back through alias expansion. If it's the uid of qmaild, the
> message probably came in from the net. If so, you are running an open
> relay, and should close it up. Create /var/qmail/control/rcpthosts
> (man qmail-smtpd) and follow FAQ 5.4 if you need to allow relaying
> from some hosts.
>
> - Harald
