Office 365 - DMARC Info tool

Audience: Domain administrators only.

Note: This document assumes fundamental knowledge of what an SPF and DNS record is.

If you would like to learn more about SPF and DNS records, please review the following resources before proceeding with the instructions below:

What is the DMARC Info tool?

The purpose of the DMARC Info tool is to provide a template for domain administrators to make changes to their domain’s SPF records and modify published DNS with the goal of being able to secure the use of their domain using DMARC.

This tool is intended to enhance - not replace - existing policies and procedures for managing DNS SPF records.

If you would like assistance managing your DNS SPF record, please contact DoIT Help Desk and request your case to be escalated to the O365 Technical Functional team.


This section displays your domains existing DNS record and a template for staging an SPF record.

SPF Mechanism Staging

Use the SPF MECHANISM STAGING tool to generate the contents of your SPF record by adding IP Addresses/Ranges to *Add New Mechanism*. Once you have completed staging your SPF record, add this text to the DNS SPF record for your domain.

Sending IPs

View IPs sending from your domain.

Reference and Filtering

Explains the definition of icons illustrated in the Sending IPs section.

Keywords:office 365 email spf dns admin site dmarc dmark security verification   Doc ID:78247
Owner:Christina G.Group:Office 365
Created:2017-11-14 13:56 CSTUpdated:2018-12-17 10:49 CST
Sites:DoIT Help Desk, DoIT Tech Store, Office 365
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