I can accept that explanation for the log entries. That would mean that
postfix (and postfix directives) are calling the shots on mail acceptance
and delivery. The next question becomes, who (or what) is calling the
"sendmail" MTA and asking it to forward mail? Is there a way I can find out
what process wrote those entries to the log?
Thanks,
Steve
-----Original Message-----
From: slug@nks.net [mailto:slug@nks.net] On Behalf Of Paul M Foster
Sent: Monday, July 12, 2004 6:46 PM
To: slug@nks.net
Subject: Re: [SLUG] Sendmail SNAFU / Postfix fixed
On Mon, Jul 12, 2004 at 12:13:13PM -0400, Stephen Ames wrote:
> Alright, now that I have Postfix under control, I am finding problems
> with sendmail. I found some commands to put in the main.cf that will
> check the validity of senders before processing so they can't fake
> being local. However, I checked later and /var/log/maillog shows
> sendmail is trying to process mail.
>
> Jul 12 06:16:36 web1 sendmail[3962]: i6CABZcp003962:
> to=lpo8054501@aol.com,lulerpod@aol.com,luvablepc@aol.com,lukycharms77@
> aol.co
> m, [more], ctladdr=nobody (99/99), delay=00:05:01, xdelay=00:05:00,
> mailer=relay, pri=15039491, relay=localhost.managedwebservices.com.
> [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection timed out with
> localhost.managedwebservices.com.
>
> I checked /etc/init.d/sendmail status and it reports being down as
> expected. So if it is down, how can it show up in today's log? Can
> multiple instances of sendmail be running on a system? How can I
> verify this?
>
It looks to me like you actually have both sendmail and postfix on
your system. Postfix, exim (and probably other MTAs) install an
executable called "sendmail". It's not the same executable as the actual
real bonafide sendmail program. Instead, it's a convenience, to allow
Linux users to call a single program to manually deliver mail regardless
of the actual MTA in use. Needless to say, postfix's or exim's version
of "sendmail" don't support all the command line parameters of the
actual real bonafide sendmail program.
I'm running a Mepis/Debian system with postfix installed. The only time
the word "sendmail" appears in my mail.log is when I specifically call
it to deliver mail. And the context that shows up in mail.log is
completely different than what you have in your log (that is, it says,
"postfix/sendmail blah blah blah"). Moreover, there is no sendmail
script in /etc/init.d. Instead, there is /etc/init.d/postfix.
Now, if you _do_ have sendmail installed along with postfix, here's the
problem: as I said, postfix will install its own version of sendmail. If
you also have the actual real bonafide sendmail package installed, then
there's no telling whether the "sendmail" executable is the postfix one
or the sendmail package one. And of course, aside from both listening on
port 25, they have very little in common. And using both will confuse
both.
Of course, not being an expert in this, I could be totally wrong. Might
be something to check out, though. (And by the way, if you are running
both and have to get rid of one, choose sendmail. I have to disagree
with Wayne here. Sendmail is by far more difficult to configure than
either postfix or exim.)
Paul
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