From: Jeff Largent <jlargent@imagelinks.com>
To: arslan saeed <arslan@tele.net.pk>
Cc: linux-admin@vger.kernel.org
Subject: Re: sendmail question?
Date: Fri, 14 Mar 2003 15:44:01 -0500 [thread overview]
Message-ID: <3E723F11.6060608@imagelinks.com> (raw)
In-Reply-To: <001901c2ea61$fc6526d0$47cb643f@tipu>
2 servers, one inside firewall that local users use, one outside firewall
or on dmz that accepts connections from the outside.
arslan saeed wrote:
> Hi,
>
> We are running sendmail on redhat linux 7.3. When internet connectivity goes
> down at times, local users get smtp time-out messages (server not
> responding). I figured the cause of this message is that by default sendmail
> does initial dns lookups on all messages it recieves and in case of internet
> connectivity being down, it is not able to do so and produces this message.
>
> so I configured sendmail in defered delivery mode so that it should queue
> every message and should not do dns lookups and accept emails from local
> users in case of internet connectivity being down.
>
> However I figured that in defered delivery mode it does not implement anti
> spam configuration in access map. When I change delivery mode to defaulot
> background or queue-only then it looks access maps and prevents mail
> spamming.
>
> Is there anyway to make access maps work in deferred delivery mode. or any
> other configuration in which sendmail implements anti spam rules and also
> does not do initial dns maps so that email could be queued by sendmail even
> when it cannot reach internet.
>
> thanks
> arslan.
>
> -
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>
--
Jeff Largent ImageLinks, Inc.
Sr System Admin Melbourne, Fl 32935
(321) 253-0011 fax: (321) 253-5559
next prev parent reply other threads:[~2003-03-14 20:44 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-14 19:43 sendmail question? arslan saeed
2003-03-14 20:44 ` Jeff Largent [this message]
2003-03-17 9:10 ` Ben Clewett
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