No mail from cron on Feisty

[D. Michael McIntyre]

Fresh install of Ubuntu Studio/Feisty.  I'm using postfix now instead of exim, 
because it came that way out of the box.  I tried to dpkg-reconfigure it and 
tell it to send root mail to my user, etc., but I haven't heard a peep out of 
cron since this upgrade.  I have no idea if any of it is running or not.  
Either none of the crontabs are running, or I'm not getting any mail.  I 
should be getting one message every minute right now, but all I hear out of 
my inbox is "Hello in there?  ello in there?  ello in there?  elo inere?"

I've never futzed around with local mail stuff much, and I have no use for any 
of it except getting my daily status reports of how the nightly jobs went.  
As such, I don't have much to go on ferreting out the cause of this problem, 
and fixing it.

Pointers appreciated.
-- 
D. Michael McIntyre