oh wow.....typo...permit_sasl_authentication instead of permit_sasl_authenticatED. I didn't see any errors in the log prior. So I did a tail -f....
Something new: Server error: '451 4.3.5 Server configuration error'
Roundcube works fine. It's only when I use an external client.
I have a fresh build of IPSConfig 3.1.1p1. I can retrieve email just fine, but when I go to "send" from an email client, in this case outlook...
Separate names with a comma.