We are a public k-12 school and are looking to migrate to a groupware style system for out staff to collaborate better. Currently we are using Squirrelmail/postfix for email. Does anyone have any recommendations/opinions. Any input would be greatly appreciated. Thank you
I would stick in a suggestion to look at Scalix. Not free at 300 users, but it does run nicely on CentOS. Integrates well with Outlook and has a very nice webmail front end.
I would be careful with Scalix. My son used to work at a place where they went with Scalix for 300+ users. The day to day maintenance on it can be a real bear. When you have a real problem that requires support, Scalix support is less than helpful. He left that job for another but still keeps in touch with his old boss. The old boss has told him that due to the Scalix problems they are budgeting for replacing Scalix with Exchange. On the other side of the coin, when it works, it works well and integrates well with Outlook. It is just overly complex under the hood.
This is one of the beauties of OpenGroupware - it's just PostgreSQL and the filesystem. Simple and clean; PostgreSQL 8.3 performance is very good. And you just reuse whatever SMTP/IMAP architecture you have or want, this a strong bias towards Cyrus (of course).
That is how it should be, IMHO, subsystems should be loosely coupled; but it does make it more difficult to implement some features.