Operating Systems > Linux and UNIX

New mail server

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solemnwarning:
Later this week i have to setup a second mail server its probably gonna be somewhere round this specs:

p2 or maybe p3 (maybe athlon i hope)
64 or 128mb ram (more likely 64mb :( )
hda: 40gb ide
hdb: 2gb-3gb ide (for data and logs)

it needs to run:

sendmail
spamassin
dovecot
usermin
clamav (maybe)
sshd
apache2 with perl setup (and maybe php4)

which ones out of the following will run on it at a decent speed (as in without stupid lag) :

Debian GNU\Linux 3.1 (sarge)
CentOS 4.0
FreeBSD 5.3

none of these will have x installed btw

toadlife:
I don't know about Linux, but I have an OpenBSD 3.6 box running postfix/spamassassin/amavisd-new/dcc/razor on a PIII 450 with 256MB RAM. It handles 20,000 messages a day wih no problems. HOw much mail is your machine going to be handling?

solemnwarning:
less then 100 a day, im not sure if it can run usermin and apache2 without them being slow

toadlife:
100 a day? Don't worry about it. Your machine will do just fine.

toadlife:
To give you an idea of how little CPU it takes to process email - the machine I mentioned above about is only a PIII 450, handles 20K messages a day, and it's CPU usages isusually around 10-15%. In other words - it could probably scale up to around 50,000+ messages a day before running into latency problems.

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