> I have this dude who has at present an Exchange mail server with about 1200
> users (40 MB each user/ POP3).
So you have to have a strong machine with zillions of RAM and CPU power.
> They now want to set up a Linux Cluster (2 nodes) with email server II /
> IMAP4 with Proliant servers.
Are you talking about SuSE IMAP Server II?
> In the beginning there will be about 3000 users (in the end 7000 max.).
> Total storage needed in
> the beginning 300 to 500 GB.
Hmm. If we talk about SuSE's package you can achieve this performance.
They use Cyrus as the IMAP/POP3 server which is scalable up to 30000 users.
Of course you have to have good machines.
But you can use anything else than SuSE. You can build the whole
stuff on debian, progeny-debian, redhat or anything else.
What you need are postfix (MTA) , cyrus(IMAP+pop3), LDAP (user
authentication) and webmail (if you want). The SuSE package only
consists of these and web based configuration programs. That's all.
Maintained by the ILUG website team. The aim of Linux.ie is to
support and help commercial and private users of Linux in Ireland. You can
display ILUG news in your own webpages, read backend
information to find out how. Networking services kindly provided by HEAnet, server kindly donated by
Dell. Linux is a trademark of Linus Torvalds,
used with permission. No penguins were harmed in the production or maintenance
of this highly praised website. Looking for the
Indian Linux Users' Group? Try here. If you've read all this and aren't a lawyer: you should be!