Knowledge base
deliver-unmatched-email<bounce-processor>set by the HubDirectiveWhat to do with a message the processor did not recognize; delivers by default, and it is also the condition for forwarding.forward-unmatched-to<bounce-processor>DirectiveThe address an unrecognized message goes to; the line is repeatable and requires delivery of unrecognized mail to be allowed.deliver-matched-email<bounce-processor>set by the HubDirectiveWhat to do with a recognized message after parsing: deliver it to the recipient or discard it; discard by default.forward-errors-to<bounce-processor>DirectiveAn address for messages the processor could not parse; the line is repeatable.deliver-email<bounce-processor>deprecatedDirectiveOne line decided the fate of both recognized and unrecognized messages; replaced by two separate ones.