Darren Kukulka <[EMAIL PROTECTED]> wrote:
>
> Wondering if anyone can enlighten me on some strange qmail behaviour.
This doesn't sound like any known behaviour of qmail I've ever
experienced, or even heard about.
> Qmail is currently acting as a primary SMTP forwarder for a client of
> ours as well as ourselves. We also have an upstream relay which is
> called upon, as far as I'm aware, when qmail is under a little
> pressure delivering SMTP.
Sorry, I can't parse this. What do you mean "upstream relay which is
called upon when qmail is under a little pressure delivering SMTP"?
Stock qmail has no such feature -- either qmail is doing the MX lookups
itself, or you are using smtproutes to send everything to an upstream
mail hub, or some combination of the two -- but there's no way to have
qmail decide where to send mail based on current mail load.
> We had a situation where a destination SMTP host died and qmail
> started banking up messages - around 70 or so. Here's where it gets
> interesting...we have a monitoring program running on the qmail host
> which emails one of our local exchange accounts via qmail - sendmail
> actually pumps it out first.
Okay -- generating automatic mails when the mail load is high is not the
best strategy I've ever seen, but it's common enough.
> This mail actually came through to us...strangely enough it also went to
> our relay-host and then got bumped through to a destination address
> completely different from the intended address...this happened to be an
> address of one of our clients!
Nope. I've never even heard of qmail delivering a message to the wrong
host and wrong recipient. Either you're running buggy patches, or
you've misconfigured the server. But we can't tell -- we need to see
the logs of this happening.
> Has anybody got any ideas as to what the heck is going on?
Post full logs of the incident on a website, then send the URL and the
output of qmail-showctl to the list. Until you do that, all we can do
is guess.
Charles
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Charles Cazabon <[EMAIL PROTECTED]>
GPL'ed software available at: http://www.qcc.sk.ca/~charlesc/software/
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