[Sysadmin] Fwd: qmail changes (was: css-discuss down?)

[Dean Mah]

---------- Forwarded message ----------
From: Dean Mah <dean.mah at gmail.com>
Date: Fri, Nov 20, 2009 at 1:55 PM
Subject: Re: [Sysadmin] qmail changes (was: css-discuss down?)
To: sysadmin at lists.evolt.org, eric at meyerweb.com, content at lists.evolt.org


After watching the qmail on the server for the last few weeks and
restarting qmail repeatedly, it looks like some mail clients are
connecting to the server and then hanging.  They either send an
extremely large file or simply do not complete the SMTP session which
makes the qmail-smtpd process sit and spin.  This makes me grumpy.

I've changed the qmail-scanner-queue.pl process to check the headers
as soon as they are available rather than waiting for the entire
message to be received.  This will cause a clear spam message to be
discarded as soon as possible, at least within the Perl script, it
could be handled quicker in qmail-smtpd.

Of course, any changes to the qmail pipeline may cause mail problems.
If you see anything odd, let me know.

Dean


On Wed, Oct 28, 2009 at 9:40 AM, Dean Mah <dean.mah at gmail.com> wrote:
> Hello,
>
> In the past couple of weeks, we've been hit by a large number of
> spammers which is causing the SMTP server to get overloaded.  This
> will cause some MTAs on the sender side to decide that lists.evolt.org
> is down and, in some cases, does not retry.  I've been trying to keep
> an eye on the situation lately and hopefully things will get better.
>
> Dean
> - on behalf of evolt.org
>
>
> On Wed, Oct 28, 2009 at 7:27 AM, Eric A. Meyer <eric at meyerweb.com> wrote:
>> Greetings,
>>
>>    While the amount of css-discuss has been dropping off slowly over
>> the last few months, it seems like it's come to a nearly complete
>> halt in the past couple of days.  The last message I received came in
>> more than 24 hours ago.  Could the list and its server be checked to
>> make sure they're still running?  Thanks!