Slow access to RBLs?

[mozzi]

We had the same problem here.
We solved it by letting sendmail do the rbl's for us, this way it gets
rejected before it enters the system where with mailscanner it gets accepted
and then deleted, this wastes a lot of bandwidth.

Secondly we are a big enough site that we do the dns transfers and do the
lookups to our own servers.

Hope this helps


Mozzi

On Thursday 09 October 2003 11:24, you wrote:
> We are running MailScanner 4.23-11 under RedHat-9
>
> Yesterday email starting running extremely slowly, with messages
> accumulating in the Incoming Queue Directory
>
> Messages in /var/adm/maillog showed problems with RBL checking ...
>
> Oct  8 09:01:20 serlinux15 MailScanner[18710]: RBL Check relays.ordb.org
> timed out and was killed, consecutive failure 4 of 7 Oct  8 09:01:45
> serlinux15 MailScanner[18670]: RBL Check MAPS-RBL+ timed out and was
> killed, consecutive failure 1 of 7
>
> I disabled RBL checking, and email started running at full speed again.
>
> It seems infeasible that all the RBLs we check should have developed
> problems simultaneously, so the problem is presumably local, but I can't
> think where. The network team here assure me they have made no changes
> which might have such an affect.
>
> Does anyone have any suggestion?
>
> --------
> Alan Stanier
> Essex University Information Systems Services
> Systems Group
>
>
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