Hi,

some weeks ago someone mentionned the RFC 2369, about "The Use of URLs
as Meta-Syntax for Core Mail List Commands and their Transport through
Message Header Fields". wow.

In fact I didn't implemented the solution through message header
fields, cause : I don't know exactly how to do that, and I never seen
mailing list with such header fields.

But I wrote a small minor mode providing mailing list commands based
on the syntax described in the RFC

Just define list-help, list-subscribe, etc... variable in a group, and
command are then available :

eg, my group parameters for nnml:ding :

((to-address . "ding@gnus.org")
 (to-list . "ding@gnus.org")
 (total-expire . t)
 (expiry-wait . 20)
 (admin-address . "ding-request@gnus.org")
 (list-help "<mailto:ding-request@gnus.org?subject=help>")
 (list-unsubscribe "<mailto:ding-request@gnus.org?subject=unsubscribe>")
 (list-subscribe "<mailto:ding-request@gnus.org?subject=subscribe>"))

here is the file :