Closed threads - nothing more, just closed threads

I got a notification by email “ We’re sorry, but your email message to [“”] (titled Re: [Communities/Deutschland (Germany)] Umstieg auf Discourse - Tipps und Tricks für neue User) didn’t work.”

Could this message be amended and copy the whole of the message that didn’t make it through, so that the author can see which message it was?
Also a link to the closed topic would be useful

Ah, and please remove this “title must be 15 characters” limit, it is counterproductive