Thanks, Dan,
All I need from an MTA is:
1) take mail from fetchmail and put it in a mailbox for mutt to display,
2) take mail from mutt and send it to my ISP via smtp
3) take messages from the system, eg: cron and deliver them to that same mailbox
4) take a simple message on the CL such as:
echo 'blah' | mail -s 'oops' noone@example.com
I've been using exim for years and it works well but is overkill for my needs.
Thanks,
Mike