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I recently started a new job and I just got the chance to sit back and look at the mess the 10 previous pop tards made implementing their trusty MSCE skills :-\
....needless to say - it's a mess!
At this point, i have removed their file servers and implemented Samba authenticating against ADS and the rest of the traditional Linux implementations (printing, vpn, firewalls...etc). Now, i'm in no way "new" to Linux or new (or better yet, oblivious to it's benefits) to using Linux in the Enterprise. However, i am new to implementing Email.
I have never had to setup an Enterprise strength email server. Currently, we have a Win 2000 ADS network with an Exchange server that does NOTHING!!!
They have a Dell PowerEdge (brand new) that just sits there waiting for the external POP3 provider (more on that in a sec) to go down.
Now, my question, we have 4 static ip's and a need to bring all of our services (web page, email) back INSIDE - currently, the email is POP3 external and so is the web page. What would be a robust enough setup for email, that i could feel confident implementing??
Obviously, i have searched and searched but i'm a little confused with so many choices. Obviously, it needs to be (in order of importance):
a) Robust and redundant - must not go down
b) Extremely good at filtering spam and viruses
d) user friendly - the IMAP side of it must be Outlook friendly
e) Calendar would be a huge plus as well :-))
**As a side note, i am currently looking at OpenLDAP/Samba as a complete solution for Authentication....but that's a whole different bag of diarrhea.**
The setup I use is a Redhat Enterprise Close (CentOS 4.2) running a Postfix as it's MTA and SpamAssassin for spam filtering. I'd definitely recommend something along these lines for "Enterprise Level" mail service.