Hi, I failed to find out who is the list admin, sorry: Please fix your header List-Id: Patches for autoconf, the GNU build system <autoconf-patches.gnu.org> to comply with RFC2919 and RFC822/RFC2822. You use a forbidden special ','. Either quote it List-Id: "Patches for autoconf, the GNU build system" <autoconf-patches.gnu.org> or use smth like List-Id: Patches for autoconf - the GNU build system <autoconf-patches.gnu.org> . Thanks, Lace