---- dataentry configoptions ---- type : constant name : USE_PRECEDENCE_HEADER purpose : Use the Precedence: header in outgoing mails allowed : true false 0 1 default : true status_s : category : rendering ---- There is a debate whether or not this should be used, and it seems different per major ISP. Amazon SES will not work when used, but Gmail likes it to be there. So, experiment and check your own results and then post them back here, or in the forums, so that everyone learns.