I need daily notifications of whether or not my crontabs completed successfully. I've read a few things about setting
cron to send out email notifications, but I'm wondering... how do I know if my Linux box is set up with a mail server? If it's not, how can I do this? The systems in question are running Ubuntu 10.10, SME Server 7.4, and OS X Server 10.6.7.
Complete and detailed answers would be great, but I'm really just looking for a shove in the right direction.