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Microsoft Exchange vs ProtonMail comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Microsoft Exchange
Ranking in Email Applications
3rd
Average Rating
8.4
Reviews Sentiment
6.6
Number of Reviews
95
Ranking in other categories
Wireless Email (2nd)
ProtonMail
Ranking in Email Applications
10th
Average Rating
8.6
Reviews Sentiment
8.0
Number of Reviews
2
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of February 2026, in the Email Applications category, the mindshare of Microsoft Exchange is 10.2%, down from 11.4% compared to the previous year. The mindshare of ProtonMail is 7.5%, up from 3.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Applications Market Share Distribution
ProductMarket Share (%)
Microsoft Exchange10.2%
ProtonMail7.5%
Other82.3%
Email Applications
 

Featured Reviews

SJ
Manager IT Support at Naubahar Bottling Company (Pvt.) Ltd. Gujranwala Pakistan
Efficient email management with seamless integration
We previously used Microsoft Exchange but have moved to an MDN email solution due to cost and user growth Microsoft Exchange is a user-friendly and easy-to-deploy solution, which is beneficial for handling emails even without professional support. It is effective in managing email integration…
AP
Media Content Creator Intern
Trust and anonymity play a key role in secure communications
I am uncertain about the two-factor authentication feature. I have had integrations with other Proton services and have used Proton VPN once, though it has limited features. Simple Mail, which was acquired by ProtonMail, has been very useful for me. The pricing is moderate. I have not used any paid services from ProtonMail. It is not very costly, but I have not used any premium services. I am a customer of ProtonMail. I would rate ProtonMail an eight out of ten due to their transparency and the utility of their simple login feature. My job and company name should remain hidden.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"It integrates well with calendar, scheduling, etc. It's easy for employees to make meetings and plan their agendas."
"It has a feature that allows you to retain an email and recover it as an administrator. When you activate this feature, even if a user deletes an email, the email is still in the system, and we can retrieve it as an administrator. It is a very useful function. We turn this feature on for some of the mailboxes because we need to keep all the records. I like the way emails are classified in this solution. It makes it really easy to take a look at the most important messages. This is a really good functionality. Some of the emails directly exchanged with you are marked as important and shown in one tab, and everything else is in another tab. We usually don't have any issue with Exchange. It can be integrated with different solutions."
"The most valuable feature of Microsoft Exchange is its communication capabilities."
"The technical support services are good."
"It's pretty easy to manage."
"Scalability-wise, I rate the solution a ten out of ten."
"The technical support is fine."
"The ability to share information, appointments, and agendas easily is the big value of Microsoft Exchange."
"What I appreciate most about ProtonMail is that they are trusted, which is why I choose them."
"The auto encryption of attachments is valuable."
 

Cons

"The solution should be easier to deploy."
"They could offer simultaneous features for Exchange Online and on-premises versions. Specific features such as litigation hold and audit setups should be available on-premises."
"I think it could be more scalable."
"It is important to have the updated version for scalability."
"Exchange took time to be deployed. It requires extensive configuration and setting up servers and managing internal network access."
"I think that improvements should be made in creating greater abilities for Microsoft Exchange in terms of Reasearch and Development."
"An area for improvement would be the convenience of working with Azure services from Exchange on-premise installations."
"When we started using Exchange on the cloud, we had a lot of initial problems relating to our main database and we also experienced issues with the accidental deletion of inboxes, amongst other things. In fact, many of the files we had moved to the cloud had disappeared. There also seems to be a problem with the retention of information."
"One improvement could be the integration between ProtonMail and Proton Pass, allowing sharing of specific secrets via email."
"I think it is good but I feel that only tech-savvy people use ProtonMail. It is not that popular among other people."
 

Pricing and Cost Advice

"I don't have enough information about the licensing costs of Microsoft Exchange, but I do know that you need two types of licenses to run it. You need the product key and the client access key to activate Microsoft Exchange. This means that apart from the standard Microsoft Exchange licensing fees, you have to pay additional costs."
"This solution is expensive."
"It's a little bit expensive."
"Licensing fees are paid monthly."
"The platform has a reasonable price."
"The product pricing is reasonable if you utilize its full suite of features."
"Microsoft Exchange is an inexpensive application."
"We can get Exchange in the cloud along with the Microsoft 365 license."
Information not available
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Top Industries

By visitors reading reviews
Computer Software Company
11%
Manufacturing Company
10%
Government
8%
Comms Service Provider
8%
Comms Service Provider
22%
Educational Organization
9%
Computer Software Company
6%
Government
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business41
Midsize Enterprise28
Large Enterprise35
No data available
 

Questions from the Community

How does Zimbra Collaboration compare with Microsoft Exchange?
Zimbra is a free, open source collaborative software suite. The features I like best are the ease of integration and the email, calendar, and collaboration server with web interface. In addition, I...
What do you like most about Microsoft Exchange?
The initial setup was straightforward and fast.
What is your experience regarding pricing and costs for Microsoft Exchange?
I am aware of pricing aspects, and I would say it is affordable for what it is.
What is your experience regarding pricing and costs for ProtonMail?
The pricing is competitive, offering good value on the average plan. It’s approximately $100 for annual billing.
What needs improvement with ProtonMail?
In terms of what can be improved in ProtonMail, I think it is good but I feel that only tech-savvy people use ProtonMail. It is not that popular among other people. Therefore, we do not use it for ...
What is your primary use case for ProtonMail?
My use cases include using ProtonMail for Drive occasionally for storing files. After some time, I stopped using that feature. Primarily, I use it for sending emails when I want to maintain anonymi...
 

Also Known As

Exchange, MS Exchange
No data available
 

Overview

 

Sample Customers

Paderborn-Lippstadt Airport, Scitec Nutrition, British Airways, InnoGames, Osteology Foundation, Franz Haniel & Cie. GmbH, NTC Contracting
Wall street journal,The New york times, The Gurdian, Forbes, Fox News
Find out what your peers are saying about Microsoft Exchange vs. ProtonMail and other solutions. Updated: February 2026.
882,160 professionals have used our research since 2012.