Defender for Office 365 Email Anti-Spam Policy Modification

This guide will provide background information on modifying an existing anti-spam threat policy.

Anti-Spam Threat Policy

An anti-spam policy defines how spam-filtering technologies are used to inspect and classify messages.

Role Requirements

Procedure Scope: Administrators

Required Group Membership: Admin.Security

Handbook Reference

Package: TBD

Domain: TBD

Modifies: TBD

Modifying an Anti-Spam Threat Policy

1. Navigate to the Anti-Spam Policies – Microsoft Defender portal, locate and select the policy you wish to alter.
   
2. Upon opening the policy, all the information of the policy will be displayed. 5 points of interest will be available to Edit. You can modify the sections as needed.
   1. Description: Adjust the description of the policy; a non-functional element that provides background information on the scope of what the policy is trying to accomplish.
      
   2. Users and Domains: Specifies the users, groups, or owned domains that this policy will be applied to; additionally, you can also specify exclusions if necessary.
      
   3. Bulk Email Threshold & Spam Properties: Specifies the filters that will be applied to emails for a compliance match.
      
   4. Actions: Specifies how messages will be handled when they fail this threat policy check.
      
   5. Allowed and Blocked Senders and Domains: Specify Users or Domains that are allowed to bypass filtering or are always enforced by filtering.
      
3. Regardless of the section alterations are being made in the same procedure applies once the necessary changes have been made select Save.
   
4. Once all items have been reviewed, select Close to finalize modifications made to the policy.
   

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