[groff] bug-groff autoresponder?

[Dave Kemper]

Unsurprisingly, my post to the bug-groff email list 
(http://lists.gnu.org/archive/html/bug-groff/2018-10/msg00029.html) about how 
no one seems to monitor mail sent there anymore went unanswered.

Groff's documentation has been updated 
(http://savannah.gnu.org/bugs/index.php?54910) to direct bug reports to the bug 
tracker rather than that email list, but this change has not made it into a 
released version of groff yet, and even when it does, older groff versions will 
still point readers to a mailing list that no one reads.

Is it possible to configure bug-groff to autorespond to any email that doesn't 
come from the Savannah bug tracker, telling the sender that the tracker is the 
preferred place to report groff bugs?