Messages from cron net getting e-mailed

[Rashkae]

I have a script that uses rsync with the -v option.  When I run the
script, it's very noisy (as expected.).. however, when I call the script
from a user crontab (created with crontab -e) the file never gets
e-mailed to me.  My system does have postfix MTA installed and mutt is
able to deliver messages to user at localhost just fine.  Does anyone have
a suggestion as to why cron on ubuntu does not send e-mail of program
output?