example of nnmail-split-fancy.
;; @r{the bugs- list, but allow cross-posting when the}
;; @r{message was really cross-posted.}
(any "bugs-mypackage@@somewhere" "mypkg.bugs")
- (any "mypackage@@somewhere\" - "bugs-mypackage" "mypkg.list")
+ (any "mypackage@@somewhere" - "bugs-mypackage" "mypkg.list")
;; @r{People@dots{}}
(any "larsi@@ifi\\.uio\\.no" "people.Lars_Magne_Ingebrigtsen"))
;; @r{Unmatched mail goes to the catch all group.}