There is a guide online to this at the postfix website, but it's way too confusing and goes too deep for Fedora. It's more an "install it from scratch" thing. This works, I got it working on mine ...

If I use saslauthd in my imapd.conf and then start saslauthd with "-h shadow" then it will work, but I need to use sasldb for authentication because that is what I was using with the cyrus-sasl 1 ...