Plesk 12.0.18 #27
CentOS 7.0.1406
I have followed the instructions here to send Plesk notifications through External SMTP (overuse, new domain creation, etc):
http://download1.parallels.net/Plesk/Doc/en-US/online/plesk-administrator-guide/index.htm?fileName=72346.htm
Here is the error I see in...