Hello.
On Mon, Jul 19, 2021 at 11:39:24AM +0100, Sabahattin Gucukoglu via Exim-users wrote:
> I want to turn on DSN success notices for mail after it’s received based on criteria like sender or the inclusion of a header. It would mean I could use DSN even when my client doesn’t have support for it. This was a thing with Sendmail, using the RRTImpliesDSN option which would synthesise DSN success where Return-Receipt-To was among the headers of incoming mail.
Nowadays such behaviour may be considered as a bad practice, and users
could protest against this idea. I suggest you to look through RFC 3438,
"Recommendations for Automatic Responses to Electronic Mail".
> Can it be done, presently, without simply routing such mail through a proxy that re-injects it? I want to do other things too, like rewriting envelope and sender headers, and the more that I can do in Exim the better.
Read
https://www.exim.org/exim-html-current/doc/html/spec_html/ch-the_autoreply_transport.html
and around. Fuctionality of "autoreply" tranport may be implemented and/or
extended with external script, which gets mail via redirect router with
"unseen" option.
--
Eugene Berdnikov
