HI, I just found out an "issue": With the default MailScanner(v4.8.5) setting "Sign Clean Messages = yes", it seems MailScanner append the clean report AFTER OpenDKIM sign the message. This breaks the DKIM with "wrong body hash" error. Change "Sign Clean Messages" to "no" fixes the DKIM problem. So, is there a way to control OpenDKIM and let it sign the message last? Gao