Mail Server recommendations (digest)

Jim Durham jimd at nepinc.com
Fri Apr 29 08:49:13 PDT 2005


I'd like to thank everyone who replied with useful suggestions to 
my mail server request. It would be too much to post all the 
replies, so....

The consensus seems to be that a solution using separate machines 
for virus and spam scanning ahead of the server that provides 
smtp and pop services to the users would be a more 'elegant' 
solution than bigger iron.

The solution that seems good to me after sifting all the 
responses is to load-balance port 25 and feed 2 or 3 machines 
that virus and spam scan email and then relay it to the MTA on 
the machine with the user's mailboxes.

I'm using 'balance' from ports to load balance our Citrix servers 
and it seems to work quite well. I will probably try this for 
port 25.

Christian Damm asked questions regarding the ratio of spam to 
ham, and number of virus emails. I was suprised to see that we 
are scanning and rejecting at least 2000 emails a day for spam 
and about 30 for viruses. IOW, there are more spams than 
legitimate emails.  'sma' says we are doing about 2700 emails 
per day.

So thanks, Christian, Ari, Chuck, Matthew, Freddie, Lawrence and 
Steve. All good suggestions.

Now...how do I do this in between fixing XP problems?

-Jim




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