[exim] Eximm Bounce Subject add original Subject of failing …

Hi,

is there a way to add the original subject to a bounce e-mail instead of
just "Mail delivery.."?

We already use an exim filter for bounces:

if ("$return_path" is "" and ...
then
headers add "New-Subject: #BOUNCE# $h_subject:"
headers remove subject
headers add "Subject: $h_new-subject:"
headers remove new-subject
endif

which works for it's inteded use, but now we need the subject oft he
original e-mail added tot he subject oft he bounce, e.g.

"#BOUNCE# Mail Delivery ... $original_subject".

Cheers

Marc