I would like to suggest that PR numbers be automatically added to subject lines of all list emails, this would both make it possible for the internal SambaBugs system to thread list messages correctly and enable email clients (such as mine) which attempt to thread messages by subject to follow the whole thread, even when someone posts a message using the new SambaBugs system (which at the moment splits the thread into multiple parts). Would it be possible (or should I say not too much work) to implement this (perhaps samba@samba.anu.edu.au could go through the bugs system before then being forwarded on to another email address or program which handles lists)? If not I would like to hear any objections, impracticalities, or problems with this.