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Microsoft Defender for Office 365
5
152
4
70
3
8
2
5
1
1
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Cloud-based email security and threat management software
Table of Contents
Microsoft Defender for Office 365 - 2026 Pricing, Features, Reviews & Alternatives
All user reviews are verified by in-house moderators and provider data by our software research team. Learn more
Last updated: March 2026
Microsoft Defender for Office 365 overview
Based on 236 verified user reviews
What is Microsoft Defender for Office 365?
Microsoft Defender for Office 365 is an email security solution with key features that include spam blocking, phishing protection, spam quarantine, allow/block list management, reporting and analytics, and more.
Who uses Microsoft Defender for Office 365?
Reviews for Microsoft Defender for Office 365 come from a wide variety of industries, including computer software (10% of reviewers), education management (6%), and accounting (5%). The most frequent use case for Microsoft Defender for Office 365 cited by reviewers is email security (84% of reviewers).
What do users say about Microsoft Defender for Office 365 pricing?
Most reviewers indicate that Microsoft Defender for Office 365 delivers strong value for money, as they appreciate the low or no cost when bundled with subscriptions. Some reviewers feel premium or storage costs can be high in certain regions.
Starting price
Alternatives
with better value for money
Pros & Cons
Email Security
Virus and Antivirus
Security and Access Control
Training and Learning Curve
Performance and Speed
Microsoft Defender for Office 365’s user interface
Microsoft Defender for Office 365 pros, cons and reviews insights
To determine these pros and cons insights, we analyzed responses from
Overall rating
Value for money
4.5
Features
4.5
Ease of use
4.5
Customer support
4.3
Reviews sentiment
What do users say about Microsoft Defender for Office 365?
Microsoft Defender for Office 365 is an email security solution with key features that include spam blocking, phishing protection, spam quarantine, allow/block list management, reporting and analytics, and more.
Select to learn more
Who uses Microsoft Defender for Office 365?
Based on 236 verified user reviews.
Company size
Small Businesses
Enterprises
Midsize Businesses
Top industries
Use cases
Microsoft Defender for Office 365's key features
GetApp's analysis of 38 verified user reviews collected between July 2021 and June 2024 identifies Microsoft Defender for Office 365' most critical features and summarizes user sentiment about those features.
Reviewers appreciate Microsoft Defender for Office 365's spam blocker capabilities. They find it helps save time by filtering out unwanted emails and protecting against malicious attacks. Users report it integrates with Exchange Online Protection to automatically block spam and harmful emails. They say it keeps their inbox clean and prevents unwanted messages from consuming storage space. Reviewers feel it is a valuable tool for maintaining secure communications and preventing viruses, without needing additional software. Of the 25 Microsoft Defender for Office 365 users who gave detailed accounts of their use of Spam Blocker, 96% rated this feature as important or highly important.
Users report that Microsoft Defender for Office 365's spam detection is highly accurate and helps protect against cybercriminals. They appreciate the real-time protection against viruses and malware in emails. Reviewers indicate the ability to customize the filtering mechanism is beneficial. They find it effectively prevents suspicious emails from reaching their inbox and allows them to manage the allow/block list. They say it keeps their inbox free of unnecessary junk and enhances overall email security. Of the 20 Microsoft Defender for Office 365 users who gave detailed accounts of their use of Spam Detection, 90% rated this feature as important or highly important.
See related user reviews
Lucía T.
Digital Responsable
Alhassan A.
Research Coordinator
Winny M.
rROC Operator
Abrar K.
Survey Programmer
All Microsoft Defender for Office 365 features
Features rating:
Microsoft Defender for Office 365 alternatives
Microsoft Defender for Office 365
Starting from
No pricing info
Hoxhunt
Starting from
No pricing info
SpamTitan
Starting from
1.26
/user
Per month
Proton Mail
Starting from
6.99
/user
Per month
Microsoft Defender for Office 365 integrations (5)
Integrations rated by users
We looked at 236 user reviews to identify which products are mentioned as Microsoft Defender for Office 365 integrations and how users feel about them.
Integration rating: 4.0 (2)
“Ambos software corresponden a microsoft por lo que es facil importar o exportar datos desde uno al otro”
Santiago E.
Coordinador de bodega
Integration rating: 5.0 (2)
“merged to Word. For many clients I setup what I call a 3-D merge. Where it would first merge which documents, then merge contact information into the selected documents. A really great thing.”
Micky R.
Operations Manager
Integration rating: 4.0 (1)
Integration rating: 5.0 (1)
Integration rating: 5.0 (1)
“Norton allows me to safely enjoy my time web browsing on Google Chrome without the fear of dangerous internet virus attacks.”
Bob G.
Safety Director
Microsoft Defender for Office 365 support options
Typical customers
Platforms supported
Training options
Microsoft Defender for Office 365 FAQs
Q. What is Microsoft Defender for Office 365 used for?
Microsoft Defender for Office 365 is a cloud-based email security software designed to help businesses automatically detect, investigate, and resolve potential email threats on a centralized platform. Supervisors can configure security policies, perform spoof checks, and maintain a record of reported incidents. Microsoft Defender for Office 365 allows organizations to monitor all incoming and outgoing emails, verify the authenticity of senders or domains, and scan email attachments to prevent malware attacks. Managers can view quarantined messages and monitor the impact of campaigns through actionable analytics. It also lets users filter metadata based on various options and receive automated alerts about unusual URL clicks or other suspicious activities. Microsoft Defender for Office 365 enables businesses to automatically block spam messages and determine email traffic patterns using artificial intelligence (AI) technology and machine learning capabilities. The software also helps users offer prioritized protection to specific accounts and create custom queries to inspect security events.
