How to get rid of mail message?

[Bo Berglund]

I have started to see a pop-up message in my terminal with the following text:

You have new mail in /var/mail/<username>

If I look at this (it is actually not an  email, it is just a text file) it
seems to contain output from an application which is scheduled to run hourly by
at.
I  would like to know how I can nuke these popup messages, which are totally
bogus.

Can I just delete the file itself or will it be recreated?
Or is there a system call to disable the funcion altogether?


-- 
Bo Berglund
Developer in Sweden