Output of Cron Clogging up my inbox.

[Ow Mun Heng]

Hi Guys,

	I have a cron job made for running mrtg on my adsl connection 
at an interval of 1 minute apart. However, my ADSL conn is
not 24/7 turned on. So.. during the times when my PC is on, and the ASDL
isn't, cron still continues to run and since it can't find the ppp0
connection,
it'll output the error at a rate of 1 email per minute and I end up 
with a clogged inbox.

cron 
0-59/1 * * * * root /usr/bin/mrtg /etc/mrtg/mrtg.cfg

I know I should add a /dev/null somewhere, I tried

0-59/1 * * * * root /usr/bin/mrtg /etc/mrtg/mrtg.cfg > /dev/null

0-59/1 * * * * root /usr/bin/mrtg /etc/mrtg/mrtg.cfg 2 >&1 > /dev/null

Both does not work.

Cheers