How to deactivate service acknowledgement alerts?



We currently use the following configuration :

  • Fully Automated Nagios 1.1
  • Nagios 2.12
  • Centreon
  • About 300 hosts to monitor
  • About 200 services

Everything is (almost) working fine except that I would like to disable the e-mail alerts we received when we acknowledge a service problem through the Centreon interface.

Does somebody know how to do that ?

Many thanks in advance !