The mailing list for listmasters using Sympa

["Eric Sandquist" <address@concealed>]

Yes, that is the problem.  However, in order to minimize the nuber of writes 
to those files, I follow the plan at the bottom of 
http://www.sympa.org/faq/postfix

One thing I don't want to do is modify the sympa code as it complicates 
upgrades.  I did that in a previous version.

Unfortunately this wildcard approach is creating a massive number of bad 
messages for lists that dont exist.   I have cleared them for now and may 
crate a cron job to do it periodically to keep the numbers in check.  But it 
would be better if they were never created.  Currently, this is worse than 
having the updates to the alias files or virtual files.

I have made some modifications to the pre-postfix spam filtering and blocked 
one IP using IPchains and that seems to have helped a lot.

But I may end up having to create the aliases and re-enable 
alias_manager.pl.

Eric


----- Original Message ----- 
From: "Elwyn Davies" <address@concealed>
To: "Eric Sandquist" <address@concealed>
Cc: <address@concealed>
Sent: Tuesday, March 08, 2011 12:31 PM
Subject: Re: [sympa-users] Sympa.pl 6.2a.4 CPU load


> Hi, Eric.
>
> On Tue, 2011-03-08 at 08:18 -0600, Eric Sandquist wrote:
> > Found the issue with a large accumulation of files at 
> > /home/sympa/spool/msg
> > and /home/sympa/spool/msg/bad
> >
> > These files were accumulated from nonexistant lists that spammers were
> > attempting to hit.  We are using post fix with regular expressions to 
> > handle
> > email routing verses a large number aliases.  Have not found a solution 
> > yet,
> > but did clear out the files.
> How specific are your alias patterns?  It is possible that what you are
> seeing here is what I called 'the wildcard match problem' that was
> discussed extensively some years ago regarding where messages are
> discarded.
>
> I analysed the problem and did some work to ensure that the spam
> messages were never offered to Sympa by having very specific alias
> filters in Postfix. This topic is discussed at
> http://www.sympa.org/faq/postfix
>
> My solution is described here
> http://www.folly.org.uk/sympa/
> (also referenced via http://www.sympa.org/doc/index#installing_sympa)
> Unfortunately I haven't got around to updating the solution for version
> 6 of Sympa but it would probably not be difficult to do.
> The solution has been running satisfactorily for 3 years.
>
> Regards,
> Elwyn Davies
>
>
> > The Sympa.pl process is now running at low levels again.
> >
> > Eric
> > ----- Original Message ----- 
> > From: "Eric C Sandquist" <address@concealed>
> > To: <address@concealed>
> > Sent: Saturday, March 05, 2011 12:57 PM
> > Subject: [sympa-users] Sympa.pl 6.2a.4 CPU load
> >
> >
> > >I have Sympa 6.2a.4 installed on a 4cpu system.  The CPU load for 
> > >process
> > > sympa.pl is 40-60% on one core consitently,  This creates a significant
> > > load
> > > on resources for other sites on the server.
> > >
> > > Is this something that others have experienced?  I have been unable to
> > > identify the cause.
> > >
> > > Eric
> > >
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