[Dovecot] server provisioning

[Steve Roemen]

All,
    I was curious as to what size of systems (cpu, memory) that you are 
using.  I'm going to build a new server for imap, imap-ssl, pop3, 
pop3-ssl, maildir storage (NOT smtp or spam --that's on another server)  
for ~500 users.  What do you believe is the minimum for this?

Thanks,
Steve