I am planning to setup ZCS (Open Source Edition) for my organisation.
1. We are at present already using postfix running on ubuntu server. As ZCS also uses postfix as its MTA, may I config the postfix as per my need after ZCS installation?
2. We are using OpenFire jabber server for IM, what shall be suggestions for IM, may I continue using it or may I use ZCS's IM? Can I install OpenFire side-by-side on a same server running ZCS?
Thanks in advance.