I like to have my personal e-mails threaded in the same way as what happens when I post to mailing lists.
After hitting 'm' I just edit the "Bcc:" field when the e-mail is not going to a mailing list . and when I hit 'r' I do it systematically. The only trouble about this approach is that half of the time I just forget and have to go to my sent folder and re-send the message to myself so that it eventually takes its place in the relevant thread. I was wondering if there was a fairly simple way to have mutt help me with this. I'm sure I could come up with some complex hook that - e.g. checks the lists I am currently subscribed to and add the "Bcc:" header for all mail that's not directed to a mailing list -- hence, hopefully covering both the 'm'--new messages, and the 'r'--replies to individuals (not mailing lists). But since I have limited time to spend on this hobby and a lot on my plate at this point, I was thinking that displaying "Bcc: anyone on this message?" just before I get actually hit 'y' to send the message would be satisfactory .. especially if I had "no" as the default reply and if my Bcc: address could be retrieved from a list of aliases or something. Hope this makes sense. CJ