# Microsoft Defender for Office 365 Software Pricing, Alternatives & More 2026 | Capterra

> With the help of Capterra, learn about Microsoft Defender for Office 365 Software - reviews, pricing plans, popular comparisons to other Email Security products and more.

Source: https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365

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# 

 Microsoft Defender for Office 365 Software Review 2026: Features, Integrations, Pros & Cons

Last updated on March 15, 2026

Provider data verified by our Software Research team, and reviews moderated by our Reviews Verification team.

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[Description](#description)[Use cases](#use-cases)[Alternatives](#alternatives)[Users](#users)[Features](#features)[Pricing](#pricing)[Support](#support)[Reviews](#reviews)

Microsoft Defender for Office 365

## What is Microsoft Defender for Office 365?

Microsoft Defender for Office 365 protects all of Office 365 against advanced threats like business email compromise and credential phishing, and automatically investigates and remediates attacks. With Defender for O365 you get Integrated threat protection for all of Office 365 that gives you: -Native protection for Office 365 -Industry leading AI and automation -A comprehensive approach

## What is Microsoft Defender for Office 365 used for?

[Email Security](https://www.capterra.com/email-security-software/)[Anti-spam](https://www.capterra.com/anti-spam-software/)

Top alternative

Featured

Overall rating

Based on 237 user reviews

Reviews sentiment

Positive

94%

Neutral

3%

Negative

3%

Contact vendor  
for pricing

Free trial  
not available

Capterra Shortlist charts the highest-rated and most popular products...

Our "Best of" badge program showcases products with the highest ratings...

Our "Best of" badge program showcases products with the highest ratings...

Do you work for Microsoft Defender for Office 365?[Manage this product listing](https://digitalmarkets.gartner.com/get-listed/claim-bx?url=http://www.microsoft.com&name=Microsoft Defender for Office 365)

## Compare with a popular alternative

Capterra selects software alternatives based on relevant features, verified user reviews and user interactions. Placement may be influenced by client status.

### Microsoft Defender for Office 365

4.6 (237)

VS.

[4.9 (338)](https://www.capterra.com/p/233248/Hoxhunt/reviews/)

Starting Price

Contact vendor

Starting Price

Contact vendor

Free Trial

Free Version

Pricing Options

Free Trial

Free Version

Ease Of Use

4.5 (237)

Ease Of Use

4.9 (338)

Value For Money

4.5 (188)

Value For Money

4.8 (150)

Customer Service

4.3 (188)

Customer Service

4.8 (181)

## Microsoft Defender for Office 365 alternatives

[4.9 (50)](https://www.capterra.com/p/206740/Libraesva-Email-Security/reviews/)

Starting price

$5.00

Per User, Per Month

Pricing Options

Free Trial

Free Version

User Rating

100%

of reviewers

rated it above 4 stars

Highest Rated

[5.0 (1)](https://www.capterra.com/p/250406/Heimdal-Email-Security/#reviews)

Starting price

Contact vendor for pricing

Pricing Options

Free Trial

Free Version

User Rating

100%

of reviewers

rated it above 4 stars

[SpamTitan](https://www.capterra.com/p/168436/SpamTitan/)

[4.6 (563)](https://www.capterra.com/p/168436/SpamTitan/reviews/)

Starting price

$1.26

Per User, Per Month

Pricing Options

Free Trial

Free Version

User Rating

93%

of reviewers

rated it above 4 stars

[Learn More](https://www.capterra.com/p/168436/SpamTitan/)

[Trustifi](https://www.capterra.com/p/218859/Trustifi/)

[4.9 (19)](https://www.capterra.com/p/218859/Trustifi/#reviews)

Starting price

$6.00

Per User, Per Month

Pricing Options

Free Trial

Free Version

User Rating

100%

of reviewers

rated it above 4 stars

[Learn More](https://www.capterra.com/p/218859/Trustifi/)

[View all alternatives](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/alternatives/)

## Who uses Microsoft Defender for Office 365?

Based on Capterra reviews from the past 4 years

Company size

Based on 125 reviews

100%

75%

50%

25%

Smallbusiness

Midsizebusinesses

Enterprise

Top job functions

Based on 125 reviews

Administrative

19%

Administrative

19%

IT & Software Development

18%

Finance & Accounting

11%

Engineering

10%

Others

42%

Top industries

Based on 125 reviews

Accounting

24%

Computer Software

24%

Information Technology and Services

20%

E-Learning

16%

Other

16%

## Features

Features with the highest number of reviews are displayed first. Those that have no reviews appear next, sorted alphabetically.

Spam Blocker

4.4 (129)

72.87% of 129 reviewers that rated this feature as important or highly important

It gives you automatic blocking of unwanted emails, keeping your inbox clean. Users think the spam blocker works well, reducing spam significantly and saving time. Some reviewers find it helpful for preventing viruses and appreciate not needing extra software.

Phishing Protection

4.5 (101)

70.30% of 101 reviewers that rated this feature as important or highly important

Microsoft Defender for Office 365 offers safeguards against phishing by flagging suspicious links and emails. Reviewers appreciate the strong detection, easy setup with DKIM/SPF/DMARC, and clear warnings, though some mention setup complexity and occasional missed phishing attempts.

Spam Quarantine

4.4 (100)

60.00% of 100 reviewers that rated this feature as important or highly important

With this capability, you can isolate suspicious emails and files, preventing them from causing harm. Reviewers appreciate that you can manually review, release, or permanently remove quarantined items, which helps avoid accidental loss of safe content and gives you more control.

Spam Detection

4.4 (89)

69.66% of 89 reviewers that rated this feature as important or highly important

It helps you by accurately identifying and filtering spam, keeping your inbox safe. Some users say the detection is reliable and easy to use, with helpful warnings. Reviewers appreciate the high level of protection, though a few suggest further improvements.

Allow/Block List

4.5 (83)

55.42% of 83 reviewers that rated this feature as important or highly important

This aspect lets you decide which emails or programs to allow or block, giving you control over your communications. Reviewers indicate the lists are easy to manage, helpful for blocking threats, and allow quick changes, though some wish for more automation.

Reporting/Analytics

4.4 (105)

63.81% of 105 reviewers that rated this feature as important or highly important

View and track pertinent metrics to find patterns and gain insights from data

Microsoft Defender for Office 365 21 features

Define levels of authorization for access to specific files or systems

System alerts about the need to escalate an issue or request

This aspect lets you decide which emails or programs to allow or block, giving you control over your communications. Reviewers indicate the lists are easy to manage, helpful for blocking threats, and allow quick changes, though some wish for more automation.

Techniques to prevent and filter unwanted or unsolicited email spam from reaching a user's inbox

Safeguard confidential data and meet compliance regulations

Provides protection against malicious attachments.

Use filters to process, organize and categorize emails to identify spam, malware and other unwanted messages

Route emails to multiple servers

Find & retrieve relevant data or documents

A request to the original server for a message to be resent

Microsoft Defender for Office 365 offers safeguards against phishing by flagging suspicious links and emails. Reviewers appreciate the strong detection, easy setup with DKIM/SPF/DMARC, and clear warnings, though some mention setup complexity and occasional missed phishing attempts.

Create, manage, and track policies and procedures within an organization

Active monitoring of systems, applications, or networks

View and track pertinent metrics to find patterns and gain insights from data

It gives you automatic blocking of unwanted emails, keeping your inbox clean. Users think the spam blocker works well, reducing spam significantly and saving time. Some reviewers find it helpful for preventing viruses and appreciate not needing extra software.

It helps you by accurately identifying and filtering spam, keeping your inbox safe. Some users say the detection is reliable and easy to use, with helpful warnings. Reviewers appreciate the high level of protection, though a few suggest further improvements.

With this capability, you can isolate suspicious emails and files, preventing them from causing harm. Reviewers appreciate that you can manually review, release, or permanently remove quarantined items, which helps avoid accidental loss of safe content and gives you more control.

Rejecting phishing emails that include suspicious URLs or links to websites that have been previously flagged.

Protect incoming and outgoing communications against malware, spam, display spoofing, and other threats

Identifying, analyzing, and mitigating security issues and taking appropriate action to protect systems and data from potential harm

Control system access and/or deliverability for applications and email addresses

Features

4.5 (237)

4.5

Based on 237 reviews

## Pricing

Value for money

4.5 (188)

### Starting price

Contact vendor  
for pricing

Free trial  
not available

Value for money

4.5 (188)

4.5

Based on 188 reviews

## Support, customer service and training options

Customer Service

4.3 (188)

Support

-   Email/Help Desk
-   FAQs/Forum
-   Knowledge Base
-   Phone Support
-   24/7 (Live rep)
-   Chat

Training

-   In Person
-   Live Online
-   Webinars
-   Documentation
-   Videos

Deployment

-   Web
-   Android
-   iPhone/iPad

Typical users

-   Freelancers
-   Small businesses
-   Mid size businesses
-   Enterprises

Customer Service

4.3 (188)

4.3

Based on 188 reviews

## User reviews

Overall rating

4.6

Based on 237 reviews

Filter by rating

5(153)

4(70)

3(8)

2(5)

1(1)

Mentioned topic

Sorted by most recent

AU

Anonymous User

Marketing Specialist

Environmental Services

### "Great for Microsoft Integration"

5.0

Overall Rating

5.0

5.0

Ease of Use

5.0

5.0

Features

5.0

5.0

Customer Service

5.0

5.0

Likelihood to Recommend

10/10

April 30, 2026

Pros

I like that Microsoft has built-in security and antivirus software that connects across all of the Microsoft applications. Easy to set up and integrate across laptops, computers, and phones.

Cons

Staying on top of making sure everything is up to date. Because Microsoft runs across phones, computers, and laptops, for a non-tech person, it can be intimidating to make sure I'm always protected on all devices.

Review source

Incentivized review: software users are invited to submit an honest review and offered a nominal incentive for their time and effort. All incentivized reviews are subject to our verification process prior to publication.

Michelle F.

Owner

Consumer Services

### "A+ for Microsoft, Great Value"

4.0

Overall Rating

4.0

4.0

Ease of Use

5.0

5.0

Features

5.0

5.0

Customer Service

4.0

4.0

Likelihood to Recommend

8/10

April 19, 2026

Easy to use, value for the money and user friendly to implement into business! Would highly recommend.

Pros

Value for the money, easy to learn and work with. Easy to implement into computer. File storage is very easy.

Cons

Glitches sometimes as Microsoft products do. Usually get nothing loading when opening the app on desktop.

Review source

Non-incentivized review: any software user can leave a review for any product listed on our site. All submitted reviews are subject to our verification process prior to publication.

JB

Jennifer B.

Marketing and sales

Consumer Services

### "Great and user friendly "

5.0

Overall Rating

5.0

5.0

Ease of Use

5.0

5.0

Features

5.0

5.0

Customer Service

5.0

5.0

Likelihood to Recommend

9/10

March 23, 2026

Pros

Great to use. User friendly no huge learning curve setup is easy if you need customer support they’re always there ready and willing.

Cons

Nothing I really don’t like about it. It’s just so simple to use easy to access easy to trouble shoot

Review source

Incentivized review: software users are invited to submit an honest review and offered a nominal incentive for their time and effort. All incentivized reviews are subject to our verification process prior to publication.

NY

Natalie Y.

Office Assistant

Accounting

### "Microsoft 365 helps our business"

5.0

Overall Rating

5.0

5.0

Ease of Use

4.0

4.0

Features

4.0

4.0

Customer Service

4.0

4.0

Likelihood to Recommend

3/10

March 8, 2026

Overall, it’s a great program our small business uses it for multiple emails and it has detected many severe threats.overall for the amount of money we spend each year it is very worth it!

Pros

The thing I like most is it filters all the spam emails very well. It detects threats right away and I like that it keeps it separate from the focused email. The set up is very easy and self explanatory.

Cons

The one thing I don’t like the most is file syncing. While syncing files a very slow performance with file version conflicting.

Review source

Incentivized review: software users are invited to submit an honest review and offered a nominal incentive for their time and effort. All incentivized reviews are subject to our verification process prior to publication.

MW

Mekailah W.

Ceo

Entertainment

### "What I think is important."

4.0

Overall Rating

4.0

4.0

Ease of Use

4.0

4.0

Features

4.0

4.0

Customer Service

4.0

4.0

Likelihood to Recommend

8/10

January 24, 2026

It’s often praised for giving organizations confidence that inboxes are protected with real-time scanning and advanced threat intelligence.

Pros

It gives security teams confidence that sophisticated threats — like malicious links and dangerous attachments — are caught early.

Cons

Some advanced phishing or spoofing protections aren’t perfect and may miss high-level impersonation attacks without additional layers or tuning.

Review source

Incentivized review: software users are invited to submit an honest review and offered a nominal incentive for their time and effort. All incentivized reviews are subject to our verification process prior to publication.

AO

Alvin O.

Cyber Security Specialist

Information Technology and Services

### "Anti-phishing controls for active inboxes."

4.0

Overall Rating

4.0

4.0

Ease of Use

4.0

4.0

Features

4.0

4.0

Customer Service

0.0

0.0

Likelihood to Recommend

8/10

August 27, 2025

Phishing and malware protection were enhanced, auto-quarantine reduced malicious emails, and safe download warnings safeguarded our team files.

Pros

Real-time spam and threat protection of secure team messages, with guidance for configuring attachments and storage of files.

Cons

Steep learning curve when configuring advanced rules or email routing, and support documentation isn't always compatible with our usage scenario.

Review source

Incentivized review: software users are invited to submit an honest review and offered a nominal incentive for their time and effort. All incentivized reviews are subject to our verification process prior to publication.

HG

Harley G.

Sr. IT Technician

Information Technology and Services

### "Solid workhorse system, would recommend for any 365 based companies"

4.0

Overall Rating

4.0

4.0

Ease of Use

3.0

3.0

Features

5.0

5.0

Customer Service

2.0

2.0

Likelihood to Recommend

7/10

July 28, 2025

We've had a good experience with it so far. We use it for all of our clients, and once we learned how to set it up correctly it worked a treat. We had a few issues with allowing mailing lists, as the phishing defence might have been a little too good at it's job, but aside from that it's been great.

Pros

Good system, feature rich and well priced. E-mail defence systems are extremely good and allow great granular control.

Cons

Customer support is slow, documentation can be a bit daunting for newer users, but once it's set up it's solid. Anti-impersonation systems might not always work, so don't rely on that system.

Review source

Incentivized review: software users are invited to submit an honest review and offered a nominal incentive for their time and effort. All incentivized reviews are subject to our verification process prior to publication.

SH

Shari H.

Independent Contractor

E-Learning

### "The Microsoft defender review"

5.0

Overall Rating

5.0

5.0

Ease of Use

5.0

5.0

Features

5.0

5.0

Customer Service

5.0

5.0

Likelihood to Recommend

10/10

June 30, 2025

My overall experience with Microsoft office 365 is a great experience. I love that I can use all three suites ranging for Microsoft Office word PowerPoint or access if needed. I also like using the other Microsoft suites as well, such as publisher OneNote or any other new product that may be out there.

Pros

I like that this type of software helps keep your Microsoft accounts protected and also if you’re using Microsoft Office, it helps keep Microsoft Office protected and keeps hackers from trying to get into your accounts when you least expect it. It also keeps viruses and threats from happening as well.

Cons

I have not seen any cons about the software. The software overall is very good and I trust it when I am using my Microsoft accounts..

Review source

Non-incentivized review: any software user can leave a review for any product listed on our site. All submitted reviews are subject to our verification process prior to publication.

AS

Alisha S.

Editor

Translation and Localization

### "Great, easy to use scans"

5.0

Overall Rating

5.0

5.0

Ease of Use

5.0

5.0

Features

5.0

5.0

Customer Service

5.0

5.0

Likelihood to Recommend

10/10

May 25, 2025

Microsoft Defender scans are so good that I don't have to buy an additional software. It is easy to execute, has a clean interface, and covers not only email but also Microsoft Teams. It even scans attachments. Overall, a great product that runs automatically and smoothly.

Pros

It is literally the easiest antispam program out there. Since it has the big name of Microsoft, I know I'm getting the best protection out there.

Cons

It would be nice to get some extra information about the files that it scans, just to assure me of everything that was checked.

Review source

Incentivized review: software users are invited to submit an honest review and offered a nominal incentive for their time and effort. All incentivized reviews are subject to our verification process prior to publication.

AB

Amber B.

Executive Director

Health, Wellness and Fitness

### "This is the best defender ever"

5.0

Overall Rating

5.0

5.0

Ease of Use

5.0

5.0

Features

5.0

5.0

Customer Service

5.0

5.0

Likelihood to Recommend

10/10

April 10, 2025

The protection it offers is amazing. I have liked every touch of the security it offers throughout my emails and onedrive.

Pros

The security it offers give me relief when it comes to receiving emails. It will actually flag emails and then I get an email weekly stating what emails were blocked and if I would like to open them.

Cons

The process for logging into different devices is a bit complicated and time consuming.

Review source

Incentivized review: software users are invited to submit an honest review and offered a nominal incentive for their time and effort. All incentivized reviews are subject to our verification process prior to publication.

[View all Reviews](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/)

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Popular comparisons

[Hoxhunt vs Microsoft Defender for Office 365](https://www.capterra.com/compare/219685-233248/Microsoft-Defender-for-Office-365-vs-Hoxhunt)[SpamTitan vs Microsoft Defender for Office 365](https://www.capterra.com/compare/168436-219685/SpamTitan-vs-Microsoft-Defender-for-Office-365)[Proton Mail vs Microsoft Defender for Office 365](https://www.capterra.com/compare/201276-219685/ProtonMail-vs-Microsoft-Defender-for-Office-365)[ESET Endpoint Security vs Microsoft Defender for Office 365](https://www.capterra.com/compare/151915-219685/ESET-Endpoint-Security-vs-Microsoft-Defender-for-Office-365)[Topsec Cloud Solutions vs Microsoft Defender for Office 365](https://www.capterra.com/compare/145598-219685/Topsec-Email-Security-vs-Microsoft-Defender-for-Office-365)

[Graphus vs Microsoft Defender for Office 365](https://www.capterra.com/compare/219685-219920/Microsoft-Defender-for-Office-365-vs-Graphus)[Libraesva Email Security vs Microsoft Defender for Office 365](https://www.capterra.com/compare/206740-219685/Libraesva-Email-Security-vs-Microsoft-Defender-for-Office-365)[Barracuda Email Protection vs Microsoft Defender for Office 365](https://www.capterra.com/compare/175506-219685/Barracuda-Essentials-vs-Microsoft-Defender-for-Office-365)[Proofpoint Email Protection vs Microsoft Defender for Office 365](https://www.capterra.com/compare/175873-219685/Proofpoint-Email-Protection-vs-Microsoft-Defender-for-Office-365)[MimeCast Email Security vs Microsoft Defender for Office 365](https://www.capterra.com/compare/119826-219685/MimeCast-Email-Security-vs-Microsoft-Defender-for-Office-365) 

Independent research methodology

Capterra's researchers use a mix of verified reviews, independent research and objective methodologies to bring you selection and ranking information you can trust. While we may earn a referral fee when you visit a provider through our links or speak to an advisor, this has no influence on our research or methodology.

[Learn more](https://www.capterra.com/resources/proprietary-data-research/)

How Capterra verifies reviews

Capterra carefully verified over 2.5 million+ reviews to bring you authentic software experiences from real users. Our human moderators verify that reviewers are real people and that reviews are authentic. They use leading tech to analyze text quality and to detect plagiarism and generative AI.

[Learn more](https://www.capterra.com/resources/how-we-verify-reviews/)

How Capterra ensures transparency

Capterra lists all providers across its website—not just those that pay us—so that users can make informed purchase decisions. Capterra is free for users. Software providers pay us for sponsored profiles to receive web traffic and sales opportunities. Sponsored profiles include a link-out icon that takes users to the provider's website.

[Learn more](https://www.capterra.com/resources/how-we-ensure-transparency/)