Microsoft 365 Defender
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      O365 Security DKIM Signature Addition Work Instruction

      This work instruction will allow an administrator to create a DKIM signature that will be registered for your owned domain.

      This article is intended for employees of organizations that use Sittadel's security. Additionally, there are some actions that can only be accomplished by those with administrative privileges.

      Procedure Scope: Administrators

      Required Group Membership: Admin.Security

      1. Navigate to DKIM Email Authentication – O365 Defender, select the domain you wish to configure with DKIM from the list.
      2. A window will open; click Create DKIM Keys.
      3. A message will appear asking you to add the specified CNAME records to DNS. Copy the records by clicking Copy, and perform the DNS addition and publication as your DNS provider recommends.
      4. Return to the DKIM page and reselect the domain that the CNAME records have been created for. In the window, click the Enable ribbon. If successful, the switch will turn to Enabled and outbound mail will be DKIM signed.

      You're Finished!

      You should have successfully created the DKIM email authentication signature for the specified domain by creating the necessary DNS records. For any other problems or questions, reach out to us!