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Microsoft Exchange Online vs Open-Xchange comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on May 21, 2025

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
7.2
Number of Reviews
92
Ranking in other categories
No ranking in other categories
Open-Xchange
Ranking in Email Applications
11th
Average Rating
8.0
Number of Reviews
2
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of January 2026, in the Email Applications category, the mindshare of Microsoft Exchange Online is 11.1%, down from 15.1% compared to the previous year. The mindshare of Open-Xchange is 7.2%, up from 4.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Applications Market Share Distribution
ProductMarket Share (%)
Microsoft Exchange Online11.1%
Open-Xchange7.2%
Other81.7%
Email Applications
 

Featured Reviews

AM
Assistant General Manager, IT Infrastructure at SAMI Pharmaceuticals (Pvt.) Limited.
Offers flexibility and cost-effectiveness with multiple service options but could improve support and mobile features
There are many things to consider about email management in Microsoft Exchange Online. The online management is good, the storage is sufficient, and we use most of the features such as the custom rules in Microsoft Exchange Online, which we cannot find in any other email solution. That is a very good option, as we have many options to create custom rules in Microsoft Exchange Online. Regarding security features in Microsoft Exchange Online, we also use Defender for Exchange which includes the basic Exchange Online protection that has spam and threat controls. The use of Defender is beneficial for our security. The flexibility of choosing plans in Microsoft Exchange Online is good. We have chosen the best plan for our use, including multiple licenses such as plan one and business basics, which leads us towards cost-effectiveness, and the pay-as-you-go option is more flexible. Microsoft Exchange Online is very scalable.
DS
Owner at David Strom Inc.
Collaborate Using Open Xchange App Suite
A flexible unified communications service for collaborative workgroups that can share files, import and export contacts and calendars from a wide variety of data sources and Web services, including Facebook, LinkedIn, Twitter and Google’s Gmail. Entirely open-source based Price: Varies…
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879,768 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Computer Software Company
10%
Financial Services Firm
9%
Educational Organization
7%
Manufacturing Company
7%
Computer Software Company
15%
Comms Service Provider
11%
Government
8%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business40
Midsize Enterprise16
Large Enterprise40
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?
If I segment it into three points: low price, average, and high price, I would place Microsoft Exchange Online between average and high price.
What needs improvement with Microsoft Exchange Online?
I see no disadvantages currently. From the admin perspective, whenever an admin wants to get the email backup for a particular employee, there are a few challenges in terms of the role assignment o...
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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
1&1, Host Europe, KPN, Ziggo, namecheap, Strato, Network Solutions
Find out what your peers are saying about Google, Microsoft, Amazon Web Services (AWS) and others in Email Applications. Updated: January 2026.
879,768 professionals have used our research since 2012.