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Add an Email Flow Rule to Bypass Spam Filtering


Turn off spam filtering in Exchange Online so you can use Comodo KoruMail instead.

  • Log in to your Microsoft Office 365 administrator center account:
  • Click 'Admin' in the left menu
  • Click 'Admin Centers' > 'Exchange':




  • Click 'Mail Flow' on the left
  • Click 'Rules' at the top:



  • Select 'Bypass spam Filtering' from the drop-down menu:



  • In the 'Rule' window, complete the required fields.
  • Select 'Turn off spam filter in Office 365' in the 'Name' drop-down menu
  • Select 'The Sender' in the 'Apply this rule if..' drop-down menu
  • Select 'The Sender...'




  • Select 'IP Address is in any of these ranges or exactly matches'
  • 'Specify IP address ranges' - enter the same IP addresses from the Inbound Mail flow setup section above



  • Click '+' for each range
  • Click 'OK'
  • Do the following: Set the spam confidence level (SCL) to 'Bypass spam filtering'
  • Except if: Do not add an exception



  • Deselect the 'Audit this rule with severity level' option
  • Select 'Enforce' from 'Select the mode for this rule'
  • Click 'Save'.