Re: [Exim] FW: question about DNS timeouts

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Author: Ken Lowther
Date:  
To: Houle, Michael
CC: exim-users
Subject: Re: [Exim] FW: question about DNS timeouts
You do know there are several ways to drop these before they reach the queue?

Ken

Quoting "Houle, Michael" <Michael.Houle@???>:

> Hi, I'm reposting this because I'm desperate.
>
> I had one suggestion to try tuning dns_retry/dns_retrans
> but that didn't seem to make a difference.
>
> I would think with SPAM the way it is today, more people would
> encounter this problem. So I thought it might be worth reposting.
>
> -----Original Message-----
> From: Houle, Michael
> Sent: Tuesday, November 04, 2003 11:26 AM
> To: 'exim-users@???'
> Subject: question about DNS timeouts
>
>
> Hello exim users,
>
> I did search the FAQ but was unable to figure this out:
>
> I have a mail queue on our main routing host that has over 600
> messages. Over 95% are error messages relating to spammers and their
> "made-up" email domains.
>
> In a nutshell, I'd like to configure exim to try only once or twice to
> deliver bounce
> messages and then drop them.
>
> I've experimented with different options. I'm currently using:
>
> timeout_frozen_after = 4h
> ignore_bounce_errors_after = 1h
>
> The trouble I have is that most of my bounce messages timeout on DNS
> lookups
> with an error "host_lookup did not complete" and they never get frozen.
>
> I understand that these messages cannot be frozen (and then deleted by
> the timer)
> because exim doesn't know if they are good or bad.
>
> Is there any way to give up on dns retries in a similar way as frozen
> messages
> are dealt with ?
>
> Thanks in advance.
>
> --
>
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> details at http://www.exim.org/ ##
>
>



Ken Lowther
Comprehensive Internet Services
Vice President