Re: [LUG] Mail server

[Simon Waters <simon@xxxxxxxxxxxxxxxxxxxx>]

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Adrian Midgley wrote:
| On Friday 06 August 2004 12:34, Simon Waters wrote:
|
|
|>configuration for scalability (Exim may scale well but I haven't seen it
|>reviewed in the same tests).
|
|
| Exim scaled well as the reliably working part of the NHS email system
for some
| years.  (On Solaris)

Demon Internet use it for some of their mail service (which bits I
forget), so it clearly can be scaled. The reviews mostly pit Qmail,
Postfix and Sendmail against each other on vanilla hardware.

Many of the issues raised in these reviews can be solved by chucking
hardware at the problem, and in many cases that may be the smart move
anyway (says the guy with RAID cache on his desktop machine ;-).

But I doubt this is a major issue for many here. We are getting to the
point at work where I think it makes sense to chuck some sensible RAID
hardware at the mail servers - not least because we could then replace
three servers with one (in fact one has sensible RAID hardware, and
could if we rejig things handle all our email easily).

It is mostly volume of spam versus disk write speed, and disk rotation
rates are starting to lag behind the growth in spam. Of course if we
could filter more spam before committing to a disk write we could
probably solve this problem and carry on with software RAID on SCSI (or
even ATA) disks.
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