MH - 2 folders at once?

 All I'd like to do, is have a mail message dropped into two folders.

Here is my original recipe:

:0:$M/ixin/.lock
* ^Sender.*owner-ixion
| /usr/local/lib/mh/rcvstore +ixin

  I tried:

:0:$M/ixin/.lock
* ^Sender.*owner-ixion
| /usr/local/lib/mh/rcvstore +ixin/. +dtp/.

 but my log file says:

procmail: Executing "/usr/local/lib/mh/rcvstore,+ixin/.,+myix/."
rcvstore: only one folder at a time!


  So how do I do it? Any help appreciated.

  Regards,

     Mal.
malcolm(_dot_)jackson(_at_)nottingham(_dot_)ac(_dot_)uk