eMail interval

Hi,

I have searched the manuals for TORQUE and MAUI, but I didn´t find where
to configure the eMail interval for the following situation:

Everytime a node crashes, the server sends an eMail to the submitter of
the jobs on that node when the walltime hits the limit. Such an eMail is
sent every 30 seconds to the user, which sometimes leads to thousands of
eMails and that doesn´t amuse the user.

Where do I have to change that value? Is it part of the TORQUE
configuration or is it part of MAUI?

Thanks in advance!
Henrik