Who runs cron jobs?

[David E. Bernholdt]

I have a crontab file which has several jobs that mail me results of the
job -- not the mail from root saying "your cron job gave the following
output...", they are setup to send me mail.  Fine.

When I get this mail, the From line in the mail header has only the date,
no username.

I also noticed when crontab runs a command that rwall's a message, the
message appears on the console as "Message from ??@red...".

So my question:  who runs user cron jobs and why don't mail, rwall, and
probably others get it right?  Is there some way to fix this?

Thanks.

David Bernholdt			bernhold at qtp.ufl.edu
Quantum Theory Project		bernhold at ufpine.bitnet
University of Florida
Gainesville, FL  32611		904/392 6365