Mail Server recommendations

[Christian Damm]

Jim Durham schrieb:
> Hi,
> 
> We currently have a dual-1.8 Xeon box with 2gb ram and Raid-1 
> 160mhz SCSI's running sendmail/procmail/spamassassin and clamav.

this iron should handle serious load without probs.

1.) how large is your userbase?
2.) do you know the bottleneck? (cpu, i/o, ram etc.)
3.) average mails processed per day? (ham/spam/virus ratio?)
4.) sendmail is slow compared to other modern unix MTA`s
5.) procmail and spamassassin are resource hogs

> 
> Our place is growing, adding users and so, we need a bigger, 
> faster box.

...or multiple smaller boxes, load balanced via rrdns or a dedicated 
load balancer.
anyway, i think hardware is not your problem...as long as i dont have 
any numbers its hard to make suggestions. im running >25k userbases on 
single self built x86 hosts (mostly p4`s (> 2ghz), 1gb ram, raid-10 (4 
hd`s) - its all about fine tuning the whole system (os, mta, other 
daemons/apps) for performance (btw. - i dont have any 5.x production 
boxes right now, im talking 4.x here).

> 
> Question:  Currently the box mentioned is a Dell PowerEdge 2650.  
> We like to deal with Dell, but it's not absolutely "written in 
> stone" that I do so.  I bought a 2650 because we got one to run 
> a Windows server and I booted FreeBSD on it to see what it would 
> make of the PERC3 Raid and all that and it was just fine. The 
> 2650 just 'loves' FreeBSD, so we bought one and its worked well, 
> but we need more performance now. What bigger, faster box would 
> make a significant jump in speed and capacity runs FreeBSD well?
> 
> I can get a 2850 with 3gb processors, 320mhz SCSIs and add more 
> RAM, but I'm not sure that would give us a quantum-leap in 
> performance.
> 
> -- Thanks for any suggestions..
> 
> Jim Durham
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-- 

mfg.

christian damm
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