Re: threading

["Raffaele Morelli" <raffaele.morelli@gmail.com>]

I have a gmail account as well, and I know that it doesn't handle
mailing lists well.  However, gmail does offer POP3 access you one's
account, so he could always set up mutt or icedove or any other MUA that
can handle POP accounts, then he can reply to the list properly.

I also use gmail for lists, and you can avoid problem using 'Reply all' and erasing user's mail address leaving only the list.

have a try

cheers
raffaele