Hi Ricardo,
Mitel just released 2 articles on KMS.
The issue is fully addressed in MiCollab 9.5.
Document ID AL420
High Volume Traffic Detected on MiCollab Servers and MiVoice Business Express Servers
Document ID SO6795
High Traffic Volume Detected and Resource Alarms reported on MiCollab and MiVoice Business Express Servers
Resolution
Alter system configuration to bring MiCollab onto the LAN, fronted with an MBG proxy server.
Or
Alter firewall rules to block ports to the DMZ or LAN (10070, 10073, 10074)
Or
Apply the patch appropriate to your MiCollab version. Instructions and patch files are attached.
Thijs