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Tag: DMARC

Understanding DMARC Reject Policy: What Happens When Messages Fail Authentication?

Posted on April 16, 2024 by Bruce Jingleson

Overview DMARC (Domain-based Message Authentication, Reporting, and Conformance) is a foundational protocol in modern email security that provides best in breed protection against email spoofing and phishing attacks.  Domain owners

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Blog, SPF, DKIM, DMARC DMARC, DMARC Failure Notices, DMARC quarantine, DMARC reject

Enforce DMARC reject Policies in O365

Posted on March 9, 2022 by Bruce Jingleson

Office365 is an incredibly sophisticated business platform offering powerful capabilities supporting the needs of today’s mobile workforce with minimal investment and run cost.  As is common with any software subscription

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Blog, SPF, DKIM, DMARC DMARC, O365
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