I've been running a mix of http://james.apache.org/ http://james.apache.org/ and postfix for years. I've migrated 3 times with no issues over the years. (zip up

I've been running a mix of http://james.apache.org/ http://james.apache.org/ and postfix for years. I've migrated 3 times with no issues over the years. (zip up database dump and distribution, done.)