I'm in a bind. Time is suddenly short and I need to get a mail server up and running pretty quick.
We have a server at Rackspace. They support Postfix but not Postfix with MySQL, so if we want MySQL we're on our own.
We'll have 300 users, all employees. Mostly all on one domain but there's a few other tiny domains. We'll have a few list servs, probably with Mailman.
What's the recommendation? Postfix with MySQL or without MySQL?