Re: [Exim] lots of processes

Thanks for the input, I never even checked to see what version we were
running vs the latest release. The guy who normally handles email was out
this week. Upgrading fixed my problem.


----- Original Message -----
From: "Philip Hazel" <ph10@???>
To: "Randy Mingo" <artemis@???>
Cc: <exim-users@???>
Sent: Thursday, October 09, 2003 3:46 AM
Subject: Re: [Exim] lots of processes


> On Wed, 8 Oct 2003, Randy Mingo wrote:
>
> > We've been having some strange happenings with exim lately. We use
> > postini.com as a filtering system for spam and virus' so they clean
> > the email then deliver it to us. On a fresh reboot the machine will
> > run fine for a hour. Then right at the hour mark the processes start
> > climbing and keep climbing until the machine dies. It looks to us as
> > if the people who spam check our email are making connections that do
> > nothing and never let go. Is there any settings we might be able to
> > tweak to make it drop their connection after a set period of time.
>
> You don't say which version of Exim you are using. This reply applies to
> the current release (4.24).
>
> There are timeouts on incoming SMTP connections. However, if a client
> just sits there and, for example, sends NOOP or RSET every 4 minutes,
> they can hold a connection for a long time.
>
> Exim does have a defence against this. Check out the
> smtp_accept_max_nonmail option (introduced in Exim 4.11). You should
> also consider setting
>
> log_selector = +smtp_connection
>
> That will make Exim log when each connection starts and when it ends.
>

> --
> Philip Hazel            University of Cambridge Computing Service,
> ph10@???      Cambridge, England. Phone: +44 1223 334714.
> Get the Exim 4 book:    http://www.uit.co.uk/exim-book

>
>
>
> --
>
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