What e-mail package would be recommended

[ccnguy]

Hello all,

I am looking for an e-mail package suitable for our 500 user network. We currently have a Netware backbone servicing 50 remote branches with 500 emplyees in all.

We have ruled out using Exchange and Notes, and we don't like the looks of Groupwise. We have been thinking about using MiraPoint for our e-mail solution, but I am also looking at some Linux solutions like sendmail and postfix. I was also thinking I could download qmail (

http://www.qmail.org)

and choose between the three. Plus I would need a POP or Imap program, and an address book I could use ldap?
For groupware solution(or have I just talked about a few) how does phpGroupWare look?
How does the link freshmeat.net look to you guys?

But does Mira Point llok like the best solution out there?


Thanks