Description of problem: Currently, only the original participants of a bug receive the first message which is the parent of all additional comments E-mailed. Please enhance bugzilla to send the first, parent message (or a place holder) to each new particpant so further messages have something to be threaded against. I'd even put up with multiple such messages if I removed myself and later re-added myself again. Version-Release number of selected component (if applicable): 2.18 How reproducible: Always Steps to Reproduce: 1. 2. 3. Actual results: Adding myself to a bug report results in all E-mail linked as replies to the Message-ID of the initial report. But I did not receive this message (not being a participant). My MUA does not, therefore, thread the messages. Expected results: When I add myself to a bug report, I would like either the first message or a short place holder sent to me, both having the Message-ID of the original first E-mail. Additional info: MUA's are fairly dumb, so the parent of the bug thread doesn't have to be sent first. I could be sent after the message adding an individual it sent, but the parent threaded message should only added to those individuals being added.
The In-Reply-To header makes threading work fine for most people e.g. In-Reply-To: <bug-446214-196610.com> Which MUA is this?
The In-Reply-To header can only work if the first bugzilla message is available to the MUA. This is not the case for people who add themselves to a bug after the first bug notification has been added. The In-Reply-To header is set by Bugzilla since E-mail replies are not allowed. MUA like Sylpheed do not sort messages by threads if the In-Reply-To header (the parent message) does not exist. Perhaps Bugzilla should use the References to list the message IDs of messages of a bug.
(In reply to comment #2) > The In-Reply-To header can only work if the first bugzilla message is available > to the MUA. Evolution handles this fine - perhaps your suggestion could be implemented in bugzilla but, given the bug is nearly two years old :-), it might be more worthwhile to get Sylpheed to thread purely based on In-Reply-To if it can't find the original Message-Id referred to.
We are using the stock Bugzilla code now available upstream (3.2rc1) so this will probably be best addressed in the upstream and then Red Hat will apply the needed fixes later. Please file at: https://bugzilla.mozilla.org/enter_bug.cgi?product=Bugzilla&component=Email+Notifications Thanks Dave