Microsoft Certified Exchange Enterprise Administrator
Microsoft Certified Windows 2008 Enterprise Admin
Microsoft Certified System Engineer since 1998
Microsoft Certified Exchange Professional Since 1998
Friday, March 18, 2016
How to block spoofing email from Exchange 2013/2016 or Office 365
1. Sign in to Exchange Admin Center http://outlook.office365.com/ecp with an admin account. 2. Navigate to mail flow>rules and click the add icon to create a new rule. 3. Create a rule like this (don’t forget to click more options):
With this rule, emails from outside your organization with your domain to your organization will be blocked.
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