[exim] Strange error on mainlog file.

Hello, Im having this strange error and I cant find anything about it
anywhere:

2007-04-17 14:36:33 1HdrbP-0008Fk-IV ==
dreamland@???=central_filter defer (-1): internal
problem in central_filter router
(recipient is dreamland@???): failure to transfer data from
subprocess: status=0100 readerror='Success'

I cant find what is failing, that is all I get from exim (even on debug
mode).

If anyone can help it will be really apreciated.

here is central_filter router:


central_filter:
driver = redirect
allow_filter
no_check_local_user
file = /opt/exim/vfilters/${domain}
file_transport = address_file
pipe_transport = virtual_address_pipe
reply_transport = address_reply
retry_use_local_part
user = "${lookup{$domain}lsearch*{/opt/exim/userdomains}{$value}}"
no_verify

Thanks.

Miguel Angel.-
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