> Is there a way to save email messages permanently -- if not in gmail,
> then in a folder on my computer?
Ummm... Don't delete them? That would save them permanently in Gmail...
On the other hand, to save them to a folder on your PC, the simplest
way is probably to POP them with Thunderbird, Outlook Express, or
something similar.
All a filter is, is an automatic search. A search of YOUR GMail
account. You no more need my permission to search your GMail than you
do to search Google on the Internet.
Messages from the group show up in your mailbox as From the poster's
e-mail, and To the list name. But I thought you weren't receiving
e-mailed posts from the group?