alert-mail track number

Hi !

.. only for understanding ..

What's the meaning of the track alert-mail-number in the subject ?

e.g

Hobbit [698912] scotty:conn CRITICAL (RED)

and e.g

some alerts have got a zero [0] and still got that only didn't count up ...

Hobbit [0] sc-node-2:cluster CRITICAL (RED)

... and how i could start from zero for all host/test (?) again ..

Cheers,

   Martin 

Martin Flemming DESY / IT office : Building 2b / 008a Notkestr. 85 phone : 040 - 8998 - 4667 22603 Hamburg mail : martin.flemming at desy.de