Originally posted by AWShuttleworth:
Aha. Thanks a lot. I didn't realize that this was part of the system.
What is the mail function generally used for?
Um, sending and receiving mail? It's a command-line mail client after all. Mail sent locally on the system to your Unix account name shows up there.
What's likely happening is a cron script is running and producing output. That output gets mailed to the owner of the cron job.
You have three choices:
1) Change the cron job to write its output to the console, log file, or /dev/null (meaning throw it away)
2) Use the command-line client to periodically read and delete the messages
3) Setup postfix on your machine so that mail for your "Unix account" is redirected to your real email address.