[exim] Exim and DSN's

Hi Guys,

I have an interesting problem. We recently replaced postfix with exim 4.82
as a main relay server for our network.

After the switch over our clients complain that they are not getting their
DSN's anymore.

Upon investigation I see that exim does not support DSN's derectly but
rather via a patch. However if I read it correctly the patch only extends
to 4.72.

Is there any way to get DSN support in 4.82?

Kind regards
Ian