older mailing list archives

[Ralf Wildenhues]

I noticed that cygwin.com has archives of the Autoconf mailing
lists going back farther than the lists.gnu.org archives currently do:
  http://cygwin.com/ml/autoconf/
  http://cygwin.com/ml/bug-autoconf/
  http://cygwin.com/ml/autoconf-patches/
  http://cygwin.com/ml/autoconf-cvs/

They are not listed on <http://cygwin.com/ml/>.   I think lists.gnu.org
should have a copy of the older ones.  Who do I ask?  What does it need
to get this done?

Cheers,
Ralf