MAIL QUEUE TOO LONG AND HIGH LOAD

[James Shupe]

Explain your setup... Is the mail delivered on the same box that
MailScanner is on? Is MailScanner serving just as a mail gateway?

IIRC, it will effect delivery retries on outbound mail too, so even if
you don't have greylisting enabled it will cause issues with somebody
who does. ie:

You have an outbound message, sent to mail.example.tld.
mail.example.tld rejects the message, due to greylist. it greylists the
IP for 10 minutes.
Your queue expires after 2 minutes, and never gets resubmitted.



On Thu, 2008-12-18 at 18:15 +0100, Carlo Granisso wrote:
> Ok, sorry.
> I've modified subject.
> 
> We have no greylisting activated.
> So, you think that sender verification could be the problem.
> There's some way that can help me to improve sender verification?
> 
> 
> Thanks,
> 
> 
> Carlo 
> 
> -----Messaggio originale-----
> Da: mailscanner-bounces at lists.mailscanner.info
> [mailto:mailscanner-bounces at lists.mailscanner.info] Per conto di James Shupe
> Inviato: giovedì 18 dicembre 2008 17.50
> A: MailScanner discussion
> Oggetto: Re: PROBLEM
> 
> On Thu, 2008-12-18 at 16:38 +0100, Carlo Granisso wrote:
> > Hello everybody.
> > I've a combination of postfix and mailscanner to filter my mails.
> > From friday I've problem with bounce mail.
> > In postfix queue I've lots of messages of "MAILER-DAEMON".
> > Mail queue reached about 2000 of bounce messages.
> >  
> > So in postfix I've put:
> >  
> > bounce_queue_lifetime = 10s
> > maximal_queue_lifetime = 120s
> > 
> >  
> > Queue is working better but in mail.log I've lots o lines with:
> >  
> > Dec 18 16:37:10 filtro1 postfix/smtpd[17725]: lost connection after 
> > DATA (0 bytes) from XXXXXX
> >  
> > or
> >  
> > Dec 18 16:32:13 filtro1 postfix/smtpd[17357]: lost connection after 
> > CONNECT from
> >  
> >  
> > Have you got ideas?
> >  
> > Thanks,
> >  
> >  
> >  
> > Carlo
> 
> This isn't an answer to your question, but rather a thought about your post.
> These mailing lists are archived for later searching and non-descriptive
> subjects such as "PROBLEM" or "HELP PLZ" (we've all seen
> these) dampen that process. Also, many people on these lists selectively
> read through these posts based on the subject lines. Using a specific
> subject line in your post will both waste less time and increase the
> likelihood of somebody being able to assist you.
> 
> As for your problem, sender verification is probably a large part of your
> problem. If you're going to set bounce_queue_lifetime so short, just set it
> to 0. That way it will only be tried once. I wouldn't set
> maximal_queue_lifetime so short, as it will eventually come back to bite you
> when somebody's server is down for a short period of time, and it probably
> breaks communications with servers that employ greylisting.
> 
> -- 
> James Maurice Shupe       | HermeTek Network Solutions
> shupej at hermetek.com       | *NIX Consulting and Hosting
> GPG signed mail preferred | http://www.hermetek.com Plain text mail
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