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Microsoft Defender for Office 365 Blog
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1,865

Email Protection Basics in Microsoft 365: Spoof and Impersonation

AndrewStobart on Sep 20 2022 12:33 PM
This blog is part three in a series aimed at demystifying how email protection works in Microsoft 365.
2,099

step-by-step guides - v2 release!

Ben_Harris on Sep 06 2022 10:00 AM
You spoke and we listened! Find out what's new in the latest way to get tasks done with Microsoft Defender for Office 36...
3,827

Introducing tenant blocks via admin submissions

Dhairyya_Agarwal on Aug 22 2022 10:00 AM
Announcing the ability to create tenant blocks via the admin submissions flyout in the Defender portal.
2,607

Introducing new actions from the Email Entity page!

soumyamishra on Aug 11 2022 11:00 AM
We’re announcing new actions that can be taken from the popular Email Entity page.
3,211

Exciting Feature Updates to Attack Simulation Training

Stu Clark on Aug 04 2022 01:05 PM
We are pleased to announce a new Oauth payload, new HTML attachment type payload and external sender identification supp...
4,792

Email Protection Basics in Microsoft 365: Spam & Phish

Alex Hudish on Jun 30 2022 09:00 AM
This blog is part two in a series aimed at demystifying how email protection works in Microsoft 365.
4,143

Microsoft Defender for Office 365 Ninja Training: June 2022 Update

CTang885 on Jun 24 2022 12:46 PM
An update covering the latest additions to the Microsoft Defender for Office 365 Ninja Training
5,620

Announcing the release of step-by-step guides!

Ben_Harris on Jun 08 2022 11:04 AM
Step-by-step guides is our new outcome-driven documentation release to help you get from zero to hero with a feature in ...
6,255

Email Protection Basics in Microsoft 365: Bulk Email

AndrewStobart on Jun 06 2022 09:00 AM
This blog is part one of a series aimed at demystifying how email protection works in Microsoft 365.
8,297

Improving “Defense in Depth” with Trusted ARC Sealers for Microsoft Defender for Office 365

Puneeth on Jun 02 2022 09:00 AM
Trusted ARC sealers help preserve authentication results across intermediaries.
4,316

Evaluate Defender for Office 365 in your environment!

Giulian Garruba on May 31 2022 09:00 AM
Evaluation Mode in Microsoft Defender for Office 365 allows customers to evaluate without impacting production environme...
3,610

Configurable impersonation protection and scope for Preset Security policies

UrjaGandhi on May 17 2022 09:00 AM
Announcing updates to preset security policies to allow configuration of impersonation protection and apply policies to ...
6,938

Simplifying the Quarantine Experience - Part Two

Faith-Ebenezer_Oquong on May 12 2022 09:00 AM
Announcing additional updates to the quarantine experience in Microsoft Defender for Office 365
2,718

Email remediation actions now available in unified Action Center

soumyamishra on May 11 2022 09:00 AM
We are extremely happy to announce that all email related actions are now available in the unified Action Center.
21.8K

Introducing the UrlClickEvents table in advanced hunting with Microsoft Defender for Office 365

VipulPandey on Apr 27 2022 09:00 AM
We are excited to announce the public preview for a new data source in Microsoft 365 Defender advanced hunting —the UrlC...
6,826

Introducing differentiated protection for priority accounts in Microsoft Defender for Office 365

Giulian Garruba on Apr 13 2022 09:00 AM
Today we’re thrilled to announce general availability of differentiated protection for priority accounts. With this rele...
4,366

Streamlining the submissions experience in Microsoft Defender for Office 365

Dhairyya_Agarwal on Feb 14 2022 09:00 AM
Announcing a simpler process for submissions in the Microsoft 365 Defender portal.
4,168

Microsoft Defender for Office 365 Ninja Training: January 2022 Update

CTang885 on Jan 20 2022 09:00 AM
An update covering the latest additions to the Microsoft Defender for Office 365 Ninja Training
5,116

Updated Hunting and Investigation Experiences for Microsoft Defender for Office 365

VipulPandey on Dec 02 2021 10:00 AM
We’re making it even easier to get a 360-degree view of an email through the email entity page!
7,594

Introducing the Microsoft Defender for Office 365 Migration Guide

Scott Landry on Nov 11 2021 09:00 AM
This guide provides a simple approach to migrating your MX record to Microsoft Defender for Office 365 with confidence a...
12.4K

Mastering Configuration in Defender for Office 365 - Part Three

Sundeep_Saini on Nov 01 2021 09:00 AM
This blog is the final installment of a three-part series on simplifying configuration of threat protection in Office 36...
5,164

Reporting an email in Microsoft Defender for Office 365

Gurucharan on Oct 25 2021 09:00 AM
What happens after you report an email using Microsoft Defender for Office 365? Read this blog to learn more!
4,013

Automatic Redirection to Microsoft 365 Defender is coming!

Marina_Kidron on Sep 27 2021 09:00 AM
Excited to announce all security-related functionality will be automatically redirected to the Microsoft 365 Defender po...
6,115

Improving the reporting experience in Microsoft Defender for Office 365

Faith-Ebenezer_Oquong on Sep 20 2021 08:00 AM
Announcing improvements to reporting workflows aimed at helping SecOps assess Microsoft Defender for Office 365 effectiv...
4,263

Microsoft Defender for Office 365 Ninja Training: September 2021 Update

CTang885 on Sep 14 2021 08:30 AM
An update covering the latest additions to the Microsoft Defender for Office 365 Ninja Training
9,218

Automatically triage phish submissions in Microsoft Defender for Office 365

Hohayaty on Sep 09 2021 09:00 AM
A partnership use case between the Microsoft Digital Security and Resilience (DSR) and Microsoft Defender for Office 365...
24K

Simplifying the Quarantine Experience

Faith-Ebenezer_Oquong on Aug 24 2021 08:00 AM
Announcing updates to false positive workflows aimed at improving the quarantine process.
24K

Microsoft Teams gets more Phishing Protection!

Girish_Chander on Jul 26 2021 09:00 AM
Announcing General Availability of Safe Links for Microsoft Teams    
5,408

Making the SecOps Team More Efficient - Focused Email Actions

Giulian Garruba on Jul 19 2021 08:30 AM
This blog is part one of a multi-part series focused on the new and improved incident response capabilities within Micro...
2,359

ICYMI: Announcing Microsoft 365 Defender Streaming API

Giulian Garruba on Jun 03 2021 02:10 PM
In Case You Missed It: Microsoft 365 Defender announces Streaming API Public Preview

Latest Comments

AJS240
in Configurable impersonation protection and scope for Preset Security policies on Sep 13 2022 04:19 PM
We got bitten by this and have had to disable to allow spam digest emails. MS support worked on the case, they were unfamiliar with this issue.SafeLinks does not work now, even with a seperate SafeLinks policy in place. MS support is working on this for us.It's more than a little crazy to have to tu...
0 Likes
Dhairyya_Agarwal
in Introducing tenant blocks via admin submissions on Sep 13 2022 08:42 AM
Good question. URL and file blocks send email containing them to admin quarantine. Sender (or domains & addresses) does not do it which we plan to address soon so that there is parity and visibility.
1 Likes
Pawel Kowalski
in Introducing tenant blocks via admin submissions on Sep 13 2022 07:35 AM
Is there anyway to retrieve or review these blocked messages? Or are they gone once blocked? It would be helpful, and hopefully already possible, to send these "blocked" messages directly to an admin...or an area and admin has access to (like the quarantine page)...so the messages can be reviewed an...
0 Likes
Doug Howell
in Improving “Defense in Depth” with Trusted ARC Sealers for Microsoft Defender for Office 365 on Sep 11 2022 08:04 AM
<deleted>
0 Likes
Dhairyya_Agarwal
in Introducing tenant blocks via admin submissions on Sep 05 2022 09:48 PM
Yes, this is also possible when you turn a user submission into admin submission.
1 Likes