# Compare Proton Mail vs Microsoft Defender for Office 365 2026 | Capterra

> Unsure of what to choose? Check Capterra to compare Proton Mail and Microsoft Defender for Office 365 based on pricing, features, product details, and verified reviews.

Source: https://www.capterra.com/compare/201276-219685/ProtonMail-vs-Microsoft-Defender-for-Office-365

---

# Proton Mail vs Microsoft Defender for Office 365 Features and Cost Comparison

Last updated March 15th, 2026

Provider data verified by our Software Research team, and reviews  
moderated by our Reviews Verification team.[Learn more](https://www.capterra.com/our-story/)

Your comparison:

Proton MailMicrosoft Defender for Office 3652/4 selected

[Proton Mail](https://www.capterra.com/p/201276/ProtonMail/)[4.5 (121)](https://www.capterra.com/p/201276/ProtonMail/reviews/)

[Microsoft Defender for Office 365](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/)[4.6 (235)](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/)

[## Proton Mail](https://www.capterra.com/p/201276/ProtonMail/)[4.5 (121)](https://www.capterra.com/p/201276/ProtonMail/reviews/)

Starting Price

$6.99/month

Value-for-Money

4.3

Functionality

4.3

Ease of Use

4.4

Customer Service

4.1

Reviews Sentiment

Based on [121 reviews](#user-reviews)

Positive

112

Neutral

4

Negative

5

[## Microsoft Defender for Office 365](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/)[4.6 (235)](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/)

Starting Price

Contact vendor

Value-for-Money

4.5

Functionality

4.5

Ease of Use

4.5

Customer Service

4.3

Reviews Sentiment

Based on [235 reviews](#user-reviews)

Positive

221

Neutral

8

Negative

6

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## Summary

* * *

Features in Email Security Software

12 / 32

Only Proton Mail

-   Activity Dashboard
-   Email Management
-   Encryption

Best performer

13 / 32

Only Microsoft Defender for Office 365

-   Alerts/Escalation
-   Phishing Protection
-   Policy Management

User satisfaction

User satisfaction

4.5

User reviews[121](https://www.capterra.com/p/201276/ProtonMail/reviews/)

Ease of use

4.4

Functionality

4.3

Value for money

4.3

Customer support

4.1

User satisfaction

4.6

User reviews[235](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/)

Ease of use

4.5

Functionality

4.5

Value for money

4.5

Customer support

4.3

Price starts from

Price starts from

$6.99Per User, Per Month

-   Free version
-   Free trial

Price starts from

\--

-   Free version
-   Free trial

Best for

Best for

We serve security-conscious organizations. Some examples are health care professionals, non-profit organizations, professional services firms, governmental bodies.

Best for

DevOps and Security Operations (SecOps) teams Security engineering teams IT teams CISOs and CTOs Red, Blue, and Purple Teams CSIRT & forensic team Microsoft 365 administrators

## User reviews

Pros & cons

NE

Nicole E.

Owner

> "It’s rare to find a company that combines great privacy features with such responsive support."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___7034554)

GS

Gareth S.

Area Inclusion Worker

> "At a stretch I would say that running Outlook accounts through it is a little cumbersome but that’s more of a Microsoft issue."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___7111090)

KT

Karina T.

Customer Support Specialist

> "The application is easy for use and I can write and emails which are protected and will not be shared"

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___7109072)

DI

Dan I.

CTO

> "The custom domains are useless because they do not offer SMTP/IMAP servers and protonmail-bridge does not work on any sort of..."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#SoftwareAdvice___6118170)

NE

Nicole E.

Owner

> "The file storage has been especially impressive: fast, organized, and reliable."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___7034554)

DI

Dan I.

CTO

> "Even my SimpleLogin aliases are going to be disabled because - get this - since Protonmail bought SimpleLogin and bundled it with their..."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#SoftwareAdvice___6118170)

NE

Nicole E.

Owner

> "Everything feels intuitive, with no steep learning curve or clunky setup."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___7034554)

DI

Dan I.

CTO

> "They force you to purchase their Drive, Calendar, VPN and Password Manager which means even the cheapest plan is very expensive compared..."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#SoftwareAdvice___6118170)

Sudarshan P.

Student

> "ProtonMail is a very secure email service.2.It uses end to end encryption for strong security.3.It also supports two factors..."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___5023285)

DI

Dan I.

CTO

> "ProtonMail was more expensive than pretty much any other e-mail service, presumably because they force you to buy their password..."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#SoftwareAdvice___6118170)

PD

Patrick D.

Content Manager

> "The free plan is good enough for a Gmail replacement, but the paid plans give you access to many other services like a calendar, file..."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___4830233)

DI

Dan I.

CTO

> "It also meant that all of my e-mail clients stopped receiving or sending mail because protonmail-bridge is not available for free-tier..."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#SoftwareAdvice___6118170)

PB

Pat B.

Advisor

> "ProtonMail is easy to create accounts and provides free storage drive for keeping data and files."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___6680765)

NS

Natalie S.

Nail artist

> "Unfortunately after your folders are copied over, emails are not then automatically sent to your new address (which would be nice)"

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___4832275)

JC

Jim C.

DJ

> "A NEW SECURE FORM OF EMAIL THAT IS NOW AVAILABLE. "

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___6871830)

DI

Dan I.

CTO

> "Turns out that Protonmail does not offer SMTP/IMAP and there is no desktop app either (well, there is but it's in closed beta for ages)."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#SoftwareAdvice___6118170)

Anil I.

Student

> "The most important function of any mail service provide is security and the proton mail provides highest security and military grade..."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___5012030)

LT

Louis T.

Director

> "Lastly, I am being told I cant do anything on my account unless I pay another month's of service with no option to pay via bitcoin."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___4744366)

KC

Kristjon C.

Postdoc

> "With end-to-end encryption and servers in Switzerland, I trust that my emails are protected. Plus, the straightforward service doesn't..."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___4785168)

DI

Dan I.

CTO

> "Taking days or weeks to reply with boilerplate text that had nothing to do with my case."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#SoftwareAdvice___6118170)

Rachael C.

System Administrator

> "It allows me to stay in my communication schedules even when i am traveling."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___4920022)

MH

Maurice H.

Target validation scientist

> "Lack of integration with iOS mail app."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___6096527)

AJ

Adam J.

Business Solutions Manager

> "As privacy online grows more important, I really appreciate the way that ProtonMail has built up a suite of products over time that are..."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___5078322)

DI

Dan I.

CTO

> "I decided to cancel my Proton subscription to avoid being charged for another 2 years."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#SoftwareAdvice___6118170)

AJ

Adam J.

Business Solutions Manager

> "I really appreciate that while delivering a mail service that is top of the line for privacy, they've also really paid attention to..."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___5078322)

SB

Skyler B.

Content Writer

> "ProtonMail was also developed by scientists, so their advertising and promotion aren't really as good as other companies - and most..."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___3699029)

PB

Pat B.

Advisor

> "Protonmail is very cheap to use for email hosting"

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___6680765)

KP

Kathleen P.

Editor-Translator

> "Basically, I can NO LONGER USE MY PAID OR FREE Protonmail accounts for normal correspondence, because (1) it isn't really private and..."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___3116829)

VR

Verified Reviewer

ceo

> "It also has self destructing emails which is an important feature for sending sensitive information."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___5041711)

VR

Verified Reviewer

Research Assistant

> "Recovery method includes phrase, if you lose it you lose your account"

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___3510712)

TK

Thomas K.

Director

> "ProtonMail has a simpler interface, simply because it has fewer features ... features which I seldom used in Gmail anyway."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___5013491)

VR

Verified Reviewer

Research Assistant

> "UI seems a little outdated."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___3510712)

VR

Verified Reviewer

ceo

> "I like that it has end to end encryption and it also has zero -access encryption."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___5041711)

Fábio S.

Senior Software Security Analyst

> "At a first glance, the UI is not as intuitive as others."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___4382285)

JZ

Jeffrey Z.

Owner

> "Let me start by stating that I LOVE their clean smooth themes, I love the full featured message composer, I love the updated mobile app..."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___4061799)

Pratap M.

Student

> "The users interface also little confusing."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___4525004)

IG

Ismael G.

Administrador

> "Is a usefull product for improve privacy, filtering spam mails and send encrypted files (mainly between Proton and Proton)."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___4564804)

AJ

Amanda J.

Professional Liability Claims Representative at Sedgwick

> "It's so new that some places flag it and won't accept it."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___4640095)

DB

Davide B.

Founder

> "The help documents and guides are tailored more to the average user, and makes setting it up a breeze."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___6227669)

AT

Alan T.

Service Director

> "Lack of a clear policy in terms of using email address for marketing."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___3340013)

TK

Thomas K.

Director

> "It does at least as good a job at catching spam as Gmail, maybe a little better."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___5013491)

Isabel Cristina C.

Founder

> "I had to use the webmail and it was not possible for me to associate it with my outlook."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___3019600)

AJ

Adam J.

Business Solutions Manager

> "The best part of Proton is the privacy an encryption features."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___5078322)

JP

James P.

Principal

> "For most problems, customer service is ok. But when you run into some difficult, you discover there is NO phone support. When you..."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___2631685)

Alexander P.

Principal Investigator

> "I am absolutely thrilled with the Proton range of services and can rest easy knowing my clients data is safe."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___6061880)

VR

Verified Reviewer

Partner

> "Search mails within it is not very functional."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___2838611)

PD

Patrick D.

Content Manager

> "No ads, and completely secure when emailing other Proton accounts."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___4830233)

AT

Alan T.

Service Director

> "I don't like the "forced" connection to their VPN service."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___3340013)

SB

Skyler B.

Content Writer

> "Many companies claim to offer data security, but ProtonMail proves it, and is transparent about its practices with peer-review and..."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___3699029)

TH

Tiara H.

Social Media Specialist

> "This can be frustrating if you are emailing someone back and forth in real time."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___2966744)

VR

Verified Reviewer

Aid Worker

> "Notably they have an Easy Switch feature which I used to move my emails from Gmail and I didn't loose any information whatsoever."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___4098622)

PB

Pamela B.

Analyst

> "However, the user experience is much less sophisticated than Gmail."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___2958502)

JH

Jena H.

Translator

> "I love ProtonMail's default domain name options and the ultra-simple, clean interface of the app and web version."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___3862957)

AA

Abigail A.

President

> "The paid service connection to VPN was confusing."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___3177067)

Anand J.

Program Manager

> "Best email application to use & end-to-end encrypted email without any hustle we can attach documents to email."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___4077400)

DR

David R.

Asst. Executive Director

> "The user interface is clean, but it is not intuitive."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___2970386)

DI

Dan I.

CTO

> "The first surprise came when I tried to set up my e-mail client."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#SoftwareAdvice___6118170)

SS

Stephanie S.

Project Manager

> "Especially at the beginning you get a lot of spam emails from ProtonMail ,some of which are starred ( favored) to appear more easily . "

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___2637348)

VR

Verified Reviewer

Life Coach

> "There is so much I love about this product - the encryption, the minimal (not distracting) layout, the ease of use, the fun extras (like..."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___3495815)

MJ

Martin J.

Senior Scientist

> "The graphics is a little bit outdated and doesn't bring anything extra but it doesn't affect basic functionality."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___2416440)

PD

Patrick D.

Content Manager

> "I was an early adopter, and their apps and service have continued to improve over time."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___4830233)

DR

David R.

Asst. Executive Director

> "Additionally, the service is a little expensive"

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___2970386)

Pratap M.

Student

> "Protonmail provides secure conversation with emails by providing end to end encryption."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___4525004)

CF

Casey F.

Operations Manager

> "That they didn't inform me of their product sooner."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___2979877)

VR

Verified Reviewer

Aid Worker

> "For example, I am able to keep my emails less cluttered and improve my storage space."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___4098622)

VR

Verified Reviewer

CEO

> "The amount of emails you can do at Protonmail is questionable."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___2154700)

DB

Davide B.

Founder

> "The interface is clean and good looking, and it's a pleasure to work with."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___6227669)

Xhovana M.

Marketeer

> "Ease of use- the platform I do not think it offers the best customer experience; Expensive prices for the upgraded plans."

[See full review](https://www.capterra.com/p/201276/ProtonMail/#Capterra___2521304)

[View Reviews](https://www.capterra.com/p/201276/ProtonMail/reviews/)

NY

Natalie Y.

Office Assistant

> "The thing I like most is it filters all the spam emails very well."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___7109069)

Gerald W.

President

> "I use Malwarebytes as well and that gives me a lot of false positives which can be a real nuisance."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___6663379)

SH

Shari H.

Independent Contractor

> "I also like using the other Microsoft suites as well, such as publisher OneNote or any other new product that may be out..."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___6846423)

Gerald W.

President

> "I haven't been able to find any way to contact direct customer support with a real person."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___6663379)

HG

Harley G.

Sr. IT Technician

> "We use it for all of our clients, and once we learned how to set it up correctly it worked a treat."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___6864177)

Gerald W.

President

> "A few years back I had some false positives, but not for a long time."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___6663379)

AK

Ajaykumar K.

Specialist

> "Microsoft defender is used to protect our data and secure our organization resources"

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___6653894)

Gerald W.

President

> "The instructions are not very clear."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___6663379)

NY

Natalie Y.

Office Assistant

> "The set up is very easy and self explanatory."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___7109069)

MM

Moaz M.

vet

> "The only downside to Microsoft Defender for Office 365 is that it can be a bit expensive."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4968617)

MMR

Md Mohiminur R.

Manager

> "Microsoft Defender for Office 365 is working superb for detecting and blocking the phishing attacks."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4818374)

NK

Njenga K.

Dj

> "Pushing campaign function is quit slow and the major problem i have with it is that it cannot allow random templates send..."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3847094)

SH

Shari H.

Independent Contractor

> "My overall experience with Microsoft office 365 is a great experience."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___6846423)

OM

Owakiabul M.

Cloud consultant

> "Management of the security portal little bit confusing for new person"

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___6178847)

AY

Abdelrahman Y.

student

> "We have been able to patch out-of-date software, fix zero-day vulnerabilities, and remove risky software from our devices..."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4142133)

NZ

Nina Z.

owner

> "With regards to the most recent dangers and malware, it isn't the most refreshed antivirus programming on the lookout."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3762100)

AS

Alisha S.

Editor

> "Overall, a great product that runs automatically and smoothly."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___6818795)

NK

Njenga K.

Dj

> "What i least like the most about is learning curve of investigation indicators and pushing campaign operations."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3847094)

SL

Sarah L.

Software Tester

> "I love overseeing the product work for me."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___6659504)

AY

Abdelrahman Y.

student

> "Lacks integrated dashboard for all devices using Windows Defender. "

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4142133)

VR

Verified Reviewer

Accountant

> "Due to the nature of our organization, it helps to secure our emails from phishing and spam. Although it is not extremely..."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4000056)

NK

Njenga K.

Dj

> "Learning curve of investigation indicators one feels like your just going through the same stuff and always coming back to..."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3847094)

TA

Taha A.

front-end developer

> "Even if this attachment is encrypted, it will provide excellent protection"

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4982392)

AA

Alhassan A.

Research Coordinator

> "Scanning local drives can be painfully slow especially for huge file counts, even if the size of the scanned documents are..."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2946518)

MM

Moaz M.

vet

> "I have been using Microsoft Defender for Office 365 for several years and have been very impressed with its performance."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4968617)

WR

Wilson R.

Computer Science

> "The only problem was the number of notifications received as it gets to a point where it is annoying to receive them and..."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2869559)

AY

Abdelrahman Y.

student

> "We can now utilize KQL to build custom detection alarms thanks to custom alerts."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4142133)

AY

Abdelrahman Y.

student

> "No accountability if the computer is infected by malware."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4142133)

AW

Awad W.

design

> "An easy-to-use program that will help you a lot and is indispensable in all practical and scientific fields"

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___5007408)

Suhailah S.

Administrative Assistant

> "It will slowing down my internet connection every-time it is updating and affecting me when i am using the computer while..."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2944791)

AS

Amr S.

DIRECTOR

> "it is a good for writing and make plans. "

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4973075)

AA

Ali A.

Project Engineer

> "sometimes it gets unreliable and take some time to process"

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4536111)

NK

Njenga K.

Dj

> "What i like the most about the product are,custom alerts and vulnerability assessment."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3847094)

VK

Vincent K.

Freelancer

> "Like all Microsoft products, Microsoft defender has its eccentricities. When it comes to the latest threats and malware, it..."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2790303)

MR

MD R.

CEO

> "Smooth collaboration tools and It offers business email ,includes well-known applications like Word, Excel, PowerPoint, and..."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2834437)

KB

Krystal B.

Librarian

> "No matter how many times I flag emails that I receive from listservs as being ones that should not be quarantined, it puts..."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3408055)

MMR

Md Mohiminur R.

Manager

> "For Office security it's my first choice."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4818374)

VR

Verified Reviewer

IT Solutions Architect

> "Everything else is weaker than its counterparts and not as robust."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3935496)

VR

Verified Reviewer

Accountant

> "This is a fantastic tool from Microsoft that gives office 365 a variety of functions and protection."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4000056)

FS

Felicia S.

Freelancer

> "If I had to nitpick and find one thing about the software that I don't particularly like about Microsoft Defender, it would..."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2814289)

Fabiola P.

Tourism researcher

> "The protection for URLs within Word, Excel and PowerPoint are natively integrated and protection of mails don’t need..."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2936828)

AM

Agala M.

Nutritionist

> "I find the Microsoft defender for office 365 too basic and can therefore not prevent advanced issues."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2944938)

ME

Marco E.

Tax Consulty

> "WWhen using Windows Defender I got the best responses regarding threat detection, confirming that it is a tool that has..."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3081154)

GS

Gary S.

Data Analyst

> "The interface was confusing at first look."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3612825)

MH

Mohamed H.

Bioinformatician

> "It's also customizable allowing the user to select features from different categories allowing full control of all the..."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2958912)

Juan Ramón F.

consultant

> "Its virus scans are the worst, it consumes a lot of RAM and gives very low results"

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2836849)

MS

Mohamed S.

teacher

> "The idea of ​​quick and perfect office work makes it very easy for me and organizes my work on an ongoing basis"

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4156162)

AZ

Austin Z.

Creator

> "I don't like how it would mark links that I trust, and programs I trust, as a virus."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2873394)

ZK

Zee K.

Sales Manager

> "Microsoft Defender is always there to make you feel sure when opening emails and files to put you at re-assurance."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4497679)

FB

Fizza B.

Freelancer

> "It provides poor protection on non-Microsoft-type files."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2952442)

Abhishek G.

Intern

> "The feature of automatically providing the password to new emails is really amazing."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4690587)

MR

MD R.

CEO

> "Accessing documents through chrome web browser is slow ."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2834437)

VR

Verified Reviewer

Reporting Specialist

> "Microsoft Defender offers a wide variety of features that other similar products would bill a higher rate, with the..."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2802156)

JB

Jacob B.

Manager

> "Managing the settings can sometimes be a bit cumbersome. "

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2982192)

MS

Mohamed S.

teacher

> "The program is very genius and makes it easier for my employees to work in an organized mannerthank you"

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4156162)

JAO

José Alejandro O.

Technician

> "It is not the best online protection software and it stays a little behind from other specialized software."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2916413)

NZ

Nina Z.

owner

> "Safeguard gives a strong AV and firewall arrangement which is not difficult to convey to a huge endeavor."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3762100)

AGE

Arie Gerhardus E.

Owner

> "We need a different permit, and we don't have a clue how to get the permit that is required."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2930402)

Tadeo R.

Freelancer

> "If we weigh the pros and cons of Windows Defender, in most cases, this antivirus is more than enough for normal use of the..."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2841820)

Uğur Y.

Sales and Application Specialist

> "It still needs improvement for virus attacks."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2879660)

Fabiola P.

Tourism researcher

> "I don't have to worry much about virus when I'm working, it perfectly is in charge of that topic and I just can save my..."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2936828)

Joe A.

IT Director

> "The web interface can be frustrating slow at times."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3197791)

GS

GENES S.

self employed

> "Microsoft Defender is an antivirus that performs excellently with its commitment always and when we separate what we..."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2909517)

Abrar K.

Survey Programmer

> "Deployment is expensive and we face issues sometimes while deploying."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2940467)

KB

Kimberlee B.

Partner/CFO

> "I like the most that if harmful files are loaded the defender will automatically quarantine the files and not allow the..."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2885328)

RR

Ramamohana R.

Manager

> "In between notifications are little disturbing when working seriously."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2878638)

SI

Samsul I.

freelancer

> "Microsoft defender is an alternative for a company that they are seeking to protect their files and also have back up..."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2865327)

YK

Yvonne K.

Administrative Assistant

> "I have not found anything that I don't like about it. If there is something more I need besides defender, my computer has..."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2969257)

AN

Ahmed N.

head

> "easy to use not expensive fast very useful"

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___5027258)

SN

Siyanda N.

owner

> "It impedes all known dangers right away and sends cautions to follow up."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___3374792)

MA

Mariam A.

....

> "very easy in using, very useful and accurate"

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4960787)

RR

Ramamohana R.

Manager

> "System is becoming little slow I feel after installing the software. "

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2878638)

AK

Ashraf K.

Production manager

> "It's easy to use, and helpful 👌 and secure"

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4974387)

GS

GENES S.

self employed

> "It's very strict around the uninstallation of the misma, it's impossible."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2909517)

AK

Ashraf K.

Production manager

> "Helpful, secure"

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4974387)

BK

Brian K.

Counselor

> "I do not like subscription services or being reminded constantly to update."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2931693)

SG

Samir G.

Teacher

> "It is easy and very helpful to me in my work"

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4978705)

BK

Brian K.

Counselor

> "Sometimes it seems that these software are gimmicks, and I am not quite sure if they really make a difference."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2931693)

AY

Abdelrahman Y.

student

> "These are ideal since we can be notified as soon as anything happens that we want to know about."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___4142133)

MM

Macarena M.

freelancer

> "You can still cheat on emails on a regular basis."

[See full review](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/#Capterra___2832347)

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

## User interface

[Proton Mail](https://www.capterra.com/p/201276/ProtonMail/)

4.54 (121)

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

4.56 (235)

### Features

Proton Mail

12/32

-   Activity Dashboard
-   AI Copilot
-   AI/Machine Learning
-   Alerts/Escalation
-   Anomaly/Malware Detection
-   API
-   Audit Trail
-   Data Leak Prevention
-   Domain Check
-   Email Attachment Protection
-   Email Filtering
-   Email Management
-   Encryption
-   For MSPs
-   Fraud Detection
-   Generative AI
-   Phishing Protection
-   Policy Management
-   Real-Time Monitoring
-   Reporting/Analytics
-   Scheduled/Automated Reports
-   Security Auditing
-   Spam Analysis
-   Spam Blocker
-   Spam Quarantine
-   SURLB/URIBL Filtering
-   Third-Party Integrations
-   Threat Protection
-   Threat Response
-   Two-Factor Authentication
-   Vulnerability Scanning
-   Whitelisting/Blacklisting

[See all features](https://www.capterra.com/p/201276/ProtonMail/#features)

Microsoft Defender for Office 365

Top features

13/32

-   Activity Dashboard
-   AI Copilot
-   AI/Machine Learning
-   Alerts/Escalation
-   Anomaly/Malware Detection
-   API
-   Audit Trail
-   Data Leak Prevention
-   Domain Check
-   Email Attachment Protection
-   Email Filtering
-   Email Management
-   Encryption
-   For MSPs
-   Fraud Detection
-   Generative AI
-   Phishing Protection
-   Policy Management
-   Real-Time Monitoring
-   Reporting/Analytics
-   Scheduled/Automated Reports
-   Security Auditing
-   Spam Analysis
-   Spam Blocker
-   Spam Quarantine
-   SURLB/URIBL Filtering
-   Third-Party Integrations
-   Threat Protection
-   Threat Response
-   Two-Factor Authentication
-   Vulnerability Scanning
-   Whitelisting/Blacklisting

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

### Recognition

No recognitions have been awarded to Proton Mail

No recognitions have been awarded to Microsoft Defender for Office 365

### Deployment & support

Proton Mail

Deployment

-   Cloud, SaaS, Web-Based
-   Desktop Mac
-   Desktop Windows
-   Desktop Linux
-   On-Premise Windows
-   On-Premise Linux
-   Desktop Chromebook
-   Mobile Android
-   Mobile iPhone
-   Mobile iPad

Support

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

Training

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

Microsoft Defender for Office 365

Deployment

-   Cloud, SaaS, Web-Based
-   Desktop Mac
-   Desktop Windows
-   Desktop Linux
-   On-Premise Windows
-   On-Premise Linux
-   Desktop Chromebook
-   Mobile Android
-   Mobile iPhone
-   Mobile iPad

Support

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

Training

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

### Company Details

Proton Mail

-   By Proton Technologies
-   Located in Switzerland
-   Founded in

Microsoft Defender for Office 365

-   By Microsoft
-   Located in United States
-   Founded in 1975

## Popular Comparisons

[Proton Mail](https://www.capterra.com/p/201276/ProtonMail/)[4.54 (121)](https://www.capterra.com/p/201276/ProtonMail/reviews/)

vs

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Price

Contact vendor for pricing

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Features

4.8

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[Microsoft Defender for Office 365](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/)[4.56 (235)](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/)

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[Proton Mail](https://www.capterra.com/p/201276/ProtonMail/)[4.54 (121)](https://www.capterra.com/p/201276/ProtonMail/reviews/)

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4.7

[View full comparison](https://www.capterra.com/compare/201276-268012/ProtonMail-vs-Cypherdog-E-mail-Encryption)

[Microsoft Defender for Office 365](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/)[4.56 (235)](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/)

vs

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Contact vendor for pricing

Price

$1.26/month

4.5

Features

4.4

4.5

Ease of Use

4.4

[View full comparison](https://www.capterra.com/compare/168436-219685/SpamTitan-vs-Microsoft-Defender-for-Office-365)

[Proton Mail](https://www.capterra.com/p/201276/ProtonMail/)[4.54 (121)](https://www.capterra.com/p/201276/ProtonMail/reviews/)

vs

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$6.99/month

Price

A$396/year

4.3

Features

4.6

4.4

Ease of Use

4.5

[View full comparison](https://www.capterra.com/compare/151915-201276/ESET-Endpoint-Security-vs-ProtonMail)

[Microsoft Defender for Office 365](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/)[4.56 (235)](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/)

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Contact vendor for pricing

Price

$6/month

4.5

Features

4.7

4.5

Ease of Use

4.7

[View full comparison](https://www.capterra.com/compare/219685-268012/Microsoft-Defender-for-Office-365-vs-Cypherdog-E-mail-Encryption)

[Proton Mail](https://www.capterra.com/p/201276/ProtonMail/)[4.54 (121)](https://www.capterra.com/p/201276/ProtonMail/reviews/)

vs

[SpamTitan](https://www.capterra.com/p/168436/SpamTitan/)[4.56 (563)](https://www.capterra.com/p/168436/SpamTitan/reviews/)

$6.99/month

Price

$1.26/month

4.3

Features

4.4

4.4

Ease of Use

4.4

[View full comparison](https://www.capterra.com/compare/168436-201276/SpamTitan-vs-ProtonMail)

[Microsoft Defender for Office 365](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/)[4.56 (235)](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/)

vs

[ESET Endpoint Security](https://www.capterra.com/p/151915/ESET-Endpoint-Security/)[4.65 (1,169)](https://www.capterra.com/p/151915/ESET-Endpoint-Security/reviews/)

Contact vendor for pricing

Price

A$396/year

4.5

Features

4.6

4.5

Ease of Use

4.5

[View full comparison](https://www.capterra.com/compare/151915-219685/ESET-Endpoint-Security-vs-Microsoft-Defender-for-Office-365)

[Proton Mail](https://www.capterra.com/p/201276/ProtonMail/)[4.54 (121)](https://www.capterra.com/p/201276/ProtonMail/reviews/)

vs

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$6.99/month

Price

€34.95one time

4.3

Features

4.1

4.4

Ease of Use

4.3

[View full comparison](https://www.capterra.com/compare/160239-201276/eM-Client-vs-ProtonMail)

[Microsoft Defender for Office 365](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/)[4.56 (235)](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/)

vs

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Contact vendor for pricing

Price

$3/month

4.5

Features

4.1

4.5

Ease of Use

4.5

[View full comparison](https://www.capterra.com/compare/219685-219920/Microsoft-Defender-for-Office-365-vs-Graphus)

[Microsoft Defender for Office 365](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/)[4.56 (235)](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/)

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Contact vendor for pricing

Price

Contact vendor for pricing

4.5

Features

4.1

4.5

Ease of Use

4.5

[View full comparison](https://www.capterra.com/compare/175506-219685/Barracuda-Essentials-vs-Microsoft-Defender-for-Office-365)

[Microsoft Defender for Office 365](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/)[4.56 (235)](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/)

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Price

Contact vendor for pricing

4.5

Features

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4.5

Ease of Use

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