Server is fully up and running with postfix showing no errors anymore once the recipient_canonical_maps was moved to its own line in the main.cf file. Thanks for all the help.
Comparing the updated config I kept a copy of and the original from before the update you are correct, looks like a line break was missed in the update of the file when it tried adding the recipient_canonical_maps = setting since that is not on the original, the classes property was added...
Recently attempted the update to plesk 17.8.11 from 17.5.3 and ran into an issue with postfix erroring out and not sending/recieving emails.
Apr 18 19:47:33 servername postfix/cleanup[37758]: error: open /etc/postfix/header_checksrecipient_canonical_maps: No such file or directory
Apr 18...