[SLL] Post-Path Email server

[Bill Campbell]

On Thu, Jun 05, 2008, Derek Simkowiak wrote:
>
>   I ran Zimbra on my personal email server for a few months.  I had a 
>negative experience.  It uses a lot of Java on the backend (JSPs), and a 
>lot of (unoptimized?) AJAX and Javascript on the front-end web client, 
>and it is very, very slow.
>
>   I read several complaints about the slowness issue on Zimbra web 
>forums -- too much CPU and RAM usage on the server, and a slow enduser 
>experience (due to overladen JScript and slow server).  One forum post 
>suggested dual-core and 2GB RAM as a minimum for a Zimbra server.  I 
>guess they emulated Exchange a little /too/ well.
>
>   I went back to Postfix + Clam AV + SpamAssassin (and postgrey, and 
>RBLs, etc.), and it's flying along on a weak AMD Geode 5W embedded 
>processor (current load: 0.09).  But of course, that doesn't provide 
>Exchange functionality or any kind of shared calendar.
>
>Bill> /postfix, amavisd, and clamav to clean out the virii before they 
>get to Zimbra. /
>
>   Hmm, that seems a little odd, since Zimbra ships with spamassassin 
>and clamav.  One of the features of Zimbra is that it gives you a nice 
>web-based Admin GUI to manage all that stuff, as an alternative to 
>editing config files by hand.  I guess the client needs faster 
>performance before getting to the Exchange emulation side of things...?

It's been my experience that Zimbra doesn't keep things like
clamav and spamassasin very current, and we do some fairly
extensive incoming IP filtering with massive white lists, and
DNSRBL checking.

Bill
-- 
INTERNET:   bill at celestial.com  Bill Campbell; Celestial Software LLC
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