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Microsoft Exchange Online 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 Online
Ranking in Email Applications
2nd
Average Rating
8.6
Reviews Sentiment
7.5
Number of Reviews
89
Ranking in other categories
No ranking in other categories
ProtonMail
Ranking in Email Applications
10th
Average Rating
9.0
Number of Reviews
1
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of April 2025, in the Email Applications category, the mindshare of Microsoft Exchange Online is 14.1%, down from 15.4% compared to the previous year. The mindshare of ProtonMail is 4.7%, up from 3.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Applications
 

Featured Reviews

Babatunde-Olugbode - PeerSpot reviewer
Offers good user interface and seamlessly integrates with other Microsoft services
I like its user interface. I don't struggle or face any challenges while using it. The design interface is simple. I haven't had any trouble managing it for a long time. Even if I encounter a challenge or two, I can always reach out to Microsoft for help. So, overall, it's been a very positive experience. Having everything under one account was valuable. I just had to go through cybersecurity for licensing and download everything. With one account, you can download Office and use Online features directly from your Exchange. There are security solutions in place, and we take customer data very seriously. For example, if I accidentally create a forwarding rule or send an email with an image attached, I get a notification immediately. Compliance-wise, it's quite good online. We can do many things. Even if I can't click on something or upload a specific file type, it'll still be stored for compliance or investigation purposes. So, subscribing to these features. The benefits are widespread and effective communication. We use Microsoft Teams for meetings within and outside our organization. Additionally, Teams can be used for chat, allowing us to track communication and see user activity. Those are the key points that have proven to be beneficial.
Secure email communication facilitates safe financial exchanges and enhances data privacy
I use ProtonMail for exchanging invoicing with clients, managing financial information, and receiving notifications from bank accounts and investment brokers. It's dedicated to high-importance communication involving financial information The auto encryption of attachments is valuable. ProtonMail…

Quotes from Members

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

Pros

"It is very manageable."
"Exchange Online doesn't just do email, it allows for collaboration with inbuilt chat and calling facilities and document sharing."
"The most valuable feature of Microsoft Exchange Online is if you have people that are geographically distributed from each other is good. For example, if you have people in the United States, Europe, Africa, Asia, and Australia, having an online solution works best because then you can reach the scale of the data centers that are available by Microsoft. Additionally, if you're only going to have two to three people using the solution the cost is a lot less than having an onsite server and licensing. It is highly beneficial in these areas."
"The online version is faster, as it is a cloud instance. We can have massive mailbox capacity: 100 GB per user, which is huge. We can't provision such capacity internally, as the company would get burnt out paying for mailbox storage."
"Message trace is the most valuable feature of the product."
"The product’s most valuable feature is the online archive."
"All of the features are beneficial, but the scheduling feature is particularly useful."
"A good investment."
"The auto encryption of attachments is valuable."
 

Cons

"The ActiveSync services and the mapping services could be improved."
"The stability of the solution has room for improvement."
"In the past, we had issues with DB in mailboxes."
"In terms of machine controls, it was very confusing, and some of the administrative parts will be done from the control, but in online writing mostly we can handle everything."
"The support could improve their response time and sometimes the phone lines are not clear because of static or noise. However, the agents are knowledgeable and very helpful."
"The interface is a bit confusing."
"In the next release, I would like to see more features added to the security of the solution."
"It should integrate better with social media formats."
"One improvement could be the integration between ProtonMail and Proton Pass, allowing sharing of specific secrets via email."
 

Pricing and Cost Advice

"There is a license for Microsoft Exchange Online and I have information on that, but there have been so many changes to the licensing and it's a completely different story nowadays. Microsoft has been pushing users to buy a package of products under one license. Users are becoming more dependent on Microsoft rather than independent, that you can't decide anymore, and from my point of view, that is bad."
"The price is not competitive."
"The costs of this platform vary based on subscriptions, but it is generally reasonable."
"We have a three-year license for $25,000."
"The solution costs $12 to $16 per user per month."
"Initially, we had issues with the licensing agreement, but we worked it out with Microsoft."
"They have raised their prices, and obviously, it hits our customers. Some of them are deciding to step back from Office 365. For customers who have bought the annual subscription, they are moving to the monthly subscription."
"The pricing is really high. It's higher compared to other services."
Information not available
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Top Industries

By visitors reading reviews
Computer Software Company
12%
Financial Services Firm
8%
Government
7%
Comms Service Provider
6%
Computer Software Company
14%
Educational Organization
12%
Comms Service Provider
11%
Government
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

What do you like most about Microsoft Exchange Online?
The benefits are widespread and effective communication. We use Microsoft Teams for meetings within and outside our organization. Additionally, Teams can be used for chat, allowing us to track comm...
What is your experience regarding pricing and costs for Microsoft Exchange Online?
The pricing for Microsoft Exchange Online is quite reasonable, in my opinion. Many licensing options are available so that we can choose based on the customer's needs. For example, if a customer on...
What needs improvement with Microsoft Exchange Online?
There are always improvements needed. My personal issue with using OfficeSuite and the Exchange Server is that one has to cobble together a whole bunch of different applications. Therefore, a lot o...
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?
The UI was previously cumbersome, however, it has improved. One improvement could be the integration between ProtonMail and Proton Pass, allowing sharing of specific secrets via email. However, thi...
What is your primary use case for ProtonMail?
I use ProtonMail for exchanging invoicing with clients, managing financial information, and receiving notifications from bank accounts and investment brokers. It's dedicated to high-importance comm...
 

Also Known As

Exchange Online, Exchange Online Plan 1, Exchange Online Plan 2, MS Exchange Online
No data available
 

Overview

 

Sample Customers

Bank Alfalah Ltd., Paderborn-Lippstadt Airport, Blue Star Infotech, Scitec Nutrition, Resolution Films, British Airways, Empire Cinemas, InnoGames
Wall street journal,The New york times, The Gurdian, Forbes, Fox News
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