Turn off rules in Outlook
1. Do one of the following:
- On the File tab, in the Info view, click the Manage Rules & Alerts button:
- On the Home tab, in the Move group, click Rules and then select Manage Rules
2. On the E-mail Rules tab, under Rule, clear the check box for the rule you want to turn off:
See also this tip in French: Désactiver les règles dans Outlook.