For the first time, I would like to split something based on two
conditions instead of one.

  from "this address" and subject matches "this regex"  ==> here
  from "this address" ==>there

Seems like it ought to be obvious, but it's not. To me, anyway.
Clue-by-four?

                                        Be seeing you,
                                          norm

-- 
Norman Walsh <ndw@nwalsh.com> | Democracy consists of choosing your
http://nwalsh.com/            | dictators, after they've told you what
                              | you think it is you want to hear.--Alan
                              | Corenk