DMARC and Office 365 -
Yes, You Must!

June 21, 2017

By Shehzad Mirza

Over the past few webinar presentations about the GCA DMARC Setup Guide, there were quite a few questions about DMARC and Office 365.  One of which was, “Do we need DMARC since Office 365 already uses it?”  The answer is YES!!!  A DMARC policy still needs to be implemented if you use Office 365.  Office 365 only protects for incoming messages with DMARC.  Below is a video in which we describe how to implement SPF, DKIM and DMARC using Office 365.



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The author, Shehzad Mirza, is the Director of Operations at the Global Cyber Alliance. You can connect with Shehzad on LinkedIn.

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