Thank you all for your responses. This was insightful. So, perhaps we could state that the desired behavior of any IMAP client would be to fetch only those message headers it nedds to and perhaps a bit more. In case of TB, that would transalte to fetching only headers that would be visible to the user and perhaps screenful of header up and down.
Caching would also be advised only for the session or perhaps make it configurable. Nix. ---- Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
