Sender Policy Framework Archives

The Most Important Steps an Administrator Can Take to Make Exchange Online Secure by Default

Post author:By Sean McAvinue

There are many ways in which you can improve the security of your Exchange Online environment. In this article, Sean McAvinue details the most important steps that admins can immediately implement to align Exchange Online tenants with a good security baseline and posture.

Azure Active Directory

July 30, 2021

71 Comments

This Sender Failed Our Fraud Detection Checks and May Not Be Who They Appear to Be

Post author:By Paul Cunningham

Email messages may be found in the Junk Email folder of Outlook with a message that fraud detection checks failed, warning that the message may be spoofed.

Exchange Online

September 23, 2016

26 Comments

A Sender Policy Framework (SPF) Primer for Exchange Administrators

Post author:By Paul Cunningham

Learn how Sender Policy Framework (SPF) records work to prevent email spoofing, and how you can implement the correct SPF record for your domain.

Exchange Server

December 7, 2015

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