renamed email task to mail because of some name collision in smtplib

lib/core/job.py

@@ -43,6 +43,10 @@ class Job:
             self.handle_alarm(self.jobThreshold - serviceThreshold)
 
     def handle_alarm(self, thresholdOffset):
+        for member in self.service.get_hostgroup().get_members():
+            for task in member.get_tasks():
+                print(task)
+                task.execute("Task executed!")
         pass
 
     def handle_call(self):