Q0404

`Navigation(siblings)`_

How can I arrange for messages submitted by (for example) Majordomo to be handled specially?

You can use the condition option on a router, with a setting such as

condition = ${if and {{eq {$sender_host_address}{}} \
                      {eq {$sender_ident}{majordomo}}} \
                 {yes}{no}} 

This first tests for a locally-submitted message, by ensuring there is no sending host address, and then it checks the identity of the user that ran the submitting process.