in the subsequent discussion will end up creating a new bug. This is
annoying.
+Note that the way this feature works is perhaps not ideal (Bug#1720).
+If X-Debbugs-CC: was specifed by a real header, that header is removed
+in the mail sent out to the bug list, and the addresses merged into
+the Resent-CC header (see below). They don't appear as an explicit CC:
+header, nor do they appear in the Reply-To: header. So people you
+X-Debbugs-CC are not included in any following discussion unless they are
+manually cc'd. So this feature really only serves to notify them that
+a bug has been filed. It's then up to them to follow any subsequent
+discussion.
+
+If X-Debbugs-CC were merged into the Reply-To header, this might work
+more the way people expect.
+
+** How does Debbugs send out mails?
+
+The mails are sent out to the bug list with From: and To: unchanged.
+Eg if you file a bug with "submit@emacsbugs.donarmstrong.com", that
+remains in the To: address. They reach the bug list by being resent.
+
+Mails arriving at the bug list have the following Resent-* headers:
+
+Resent-From: person who submitted the bug
+Resent-To: bug-submit-list@donarmstrong.com
+Resent-CC: maintainer email address, plus any X-Debbugs-CC: entries
+
+The "maintainer email address" is "Emacs Bugs <bug-gnu-emacs@gnu.org>"
+in most cases.
+
+They also have:
+
+Reply-To: bug submitter, 123@emacsbugs.donarmstrong.com
+
** To not get acknowledgement mail from the tracker,
add an "X-Debbugs-No-Ack:" header (with any value). If you use Gnus,
you can add an element to gnus-posting-styles to do this automatically, eg: