To delete an inbox rule on Office 365 Outlook, please do the following: 

  • Log in to
  • Click on the gear icon in the upper right hand side of the window and click on View all Outlook settings.

  • In the Settings pane, click on Rules.

  • Click on the trash can icon beside the rule you want to delete.

  • On the Delete rule popup, click OK.

Tip: If you just want to turn the rule off for a while, clear the slider check box next to the rule.