Btw: anyway to get your mailer to not enumerate the replies in the subject? it messes up the threading in Mail.
It actually didn't mess it up on my system (Mail.app Version 2.0.5 (746/746.2)). His reply to your reply shows up in the same thread as both of your replies.
Doesn't Mail.app use the In-Reply-To and References email headers to organize threads?
I'll turn off my Re: enumeration to see if that helps.
Q