Re: ny enterprises using greylisting on Sendmail / Postfix?

Bob,
 Thanks for the reply. I really appreciate it.
 Teo

 On 9/6/05, Bob de Wildt <[email protected]> wrote: 
> 
> Dear Teo,
> 
> I'm managaging our greylist configuration for a hosted environment.
> We use the combination of Sendmail with greylisting.
> 
> Carefully we have chosen to use the RelayDelay setup with an mysql
> backend.
> The reason for this is that we need to be able to quickly allow / block
> triplets.
> 
> At this moment we have all our MX servers deployed with relay delay.
> Though we use 3 different databases to keep track of the triplets.
> 
> You should not try to get an enterprise solution. Try setting up a Linux
> machine (Debian) with the following parts:
> - Sendmail (e-mail)
> - Relaydelay (greylisting)
> - MailScanner (Anti-Virus / Anti-Spam)
> 
> This machine should, if you have a decent anti-virus software, be set up
> with at least:
> 1 x Pentium IV / Xeon 2.0 GHz (or equivelant)
> 2 GB Memory (for easy processing of the e-mails)
> SATA disks (in case of lots of caching, High IO through put)
> 
> My experience is that this machine is totally customizable and gives you
> full access.
> Most of the time the performance of the machine is equal / better than
> an enterprise solution.
> 
> Kind regards,
> 
> Bob de Wildt
> 
> Systems Administrator
> Cyso Managed Hosting
> Baangracht 2
> 1811 DC Alkmaar
> tel: (+31) (0) 72-7513400
> fax: (+31) (0) 72-7513401
> e-mail: [email protected]
> 
> -----Oorspronkelijk bericht-----
> Van: [email protected]
> [mailto:[email protected]] Namens
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> Verzonden: dinsdag 6 september 2005 21:03
> Aan: [email protected]
> Onderwerp: Greylist-users Digest, Vol 28, Issue 1
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> Today's Topics:
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> 1. Any enterprises using greylisting on Sendmail / Postfix?
> (Teo De Las Heras)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Tue, 6 Sep 2005 11:31:57 -0400
> From: Teo De Las Heras <[email protected]>
> Subject: [Greylist-users] Any enterprises using greylisting on
> Sendmail / Postfix?
> To: [email protected]
> Message-ID: <[email protected]>
> Content-Type: text/plain; charset="iso-8859-1"
> 
> The company I work with has looked into purchasing an IronPort, Symantec
> 8160, or possibly a CipherTrust solution (6.0 will have 'greylisting').
> They all seem to do a 'custom' form of greylisting, but each box has
> minimal functionality. It seems like an enterprise solution should be
> robust and have all the capabilities that the boxes are built with. For
> example, the CipherTrust solution is actually a FreeBSD box, but the
> shell only has a hand full of commands. You don't even get access to
> chron to set up automated backups. I understand that giving extended
> shell access would probably cause a significant increase in helpdesk
> calls, but is seems that an enterprise solution would required this kind
> of configuration.
> Teo
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