[Exim] unseen deliver - no retry

I have the following command in system filter file to send copy of
messages addressed to *@domain.com to some address:

unseen deliver archie@???

If this copy to archie@??? can be delivered immediately, all
works fine, but otherwise filter-added archie@??? excluded from
recipients, and after successful retry, message delivered only to
original recipients, so copy to archie@??? is not sended.

I can submit any debug info, if it will help to track problem.

exim 4.12

--
Gennady