POSTFIX: header_checks redirect to several mails

I have a regex rule like this:

/^Subject: *SOME TEXT*/ REDIRECT [email protected], [email protected]

And the receiving server interprets that as a single mail, not two and understandably throws email format errors.

How can i reformat the destinations so POSTFIX read them as two or more and resends to each separate mail (if possible)?

Thanks

EDIT:

Also tried with duplicated rules like:

/^Subject: *SOME TEXT*/ REDIRECT [email protected]
/^Subject: *SOME TEXT*/ REDIRECT [email protected]

And only works the first one, not the second.