It is possible to manipulate the behaviour of JobScheduler e-mail service. To do that the configuration file scheduler.xml has to be changed as follows:
<spooler>
<config mail_xslt_stylesheet = "config/scheduler_mail.xsl">
...
</config>
</spooler>
config/scheduler_mail.xsl is the default stylesheet for mail transformation and was shipped with the standard installation. It is possible to configure the JobScheduler e-mail service by changing it.
see: