perfomance troubles

[Ugo Bellavance]

thanks!

> -----Message d'origine-----
> De : Raymond Dijkxhoorn [mailto:raymond at PROLOCATION.NET]
> Envoyé : Thursday, October 23, 2003 7:31 PM
> À : MAILSCANNER at JISCMAIL.AC.UK
> Objet : Re: perfomance troubles
> 
> 
> Hi!
> 
> > > And try to run RBLs localy also, if possible.
> 
> > What is the difference of having a caching dns and running 
> RBLs locally?
> 
> Locally i mean on your own nameservers. We for example run 
> local copy's of
> several RBL lists. If a RBL network gets (D)DoS attacks you 
> only ont get
> new updates (rsync) but the lookups wont slowdown your own 
> mailer. On high
> volume mailers this is a must.
> 
> With caching you still have to do lookups on the remote 
> servers, if they
> are down or v e r y slow during attacks your mail will start clogging.
> 
> Bye,
> Raymond.
>