I am fairly new to Zimbra, but am already very impressed! So much so, that I am helping a non-profit organization plan an implementation, that will allow them to migrate their existing email accounts from their hosting provider's server to their own locally managed server.
The advice I need is this: the server I am planning to setup will also be the organization's firewall, router, gateway, proxy filter (squid with squidguard), and ftp server. Will any of this interfere with Zimbra? If not, then what caliber of server would you suggest to handle all of this?
Thank you very much for your time!