Microsoft 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.

How do I access the DMARC Info tool?

  1. Log into the Wisc Account Admin Site and select the domain you'd like to administer.

  2. On the "Domain Administration" menu click on DMARC Info.

How do I use the DMARC Info tool?


This section displays your domain's 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 domain based message authentication reporting conformance name system naming TXT SPF DKIM CNAME restrictive report forensic aggregate quarantine reject uw madison list server email header reply-to google groups administrators smtp IP addresses caution external "[CAUTION: External]" tagging subject mailman mail-man forwarders   Doc ID:78247
Owner:O365 S.Group:Microsoft 365
Created:2017-11-14 14:56 CDTUpdated:2023-02-02 09:01 CDT
Sites:DoIT Help Desk, DoIT Tech Store, Microsoft 365
Feedback:  0   0