Try our new research platform with insights from 80,000+ expert users

Microsoft Exchange Online vs Zimbra Collaboration 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
Zimbra Collaboration
Ranking in Email Applications
6th
Average Rating
8.0
Reviews Sentiment
7.3
Number of Reviews
28
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 Zimbra Collaboration is 7.1%, down from 9.2% 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%
Zimbra Collaboration7.1%
Other81.8%
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.
Muhammad Talha Baig - PeerSpot reviewer
Business Analyst and Associate Project Manager at SAMI Pharmaceuticals
One of the premium features was customized rooms tailored to the collaboration needs
Zimbra's strength lies in its individuality, and it should focus on leveraging its unique features rather than trying to emulate competitors. My organization has certified Zimbra technicians, so we believe we can utilize Zimbra certification. However, I was recently informed by Zimbra that no such certification exists. I have recently completed the test kit, and after the training, I will gain access to tickets. Therefore, if any clients are experiencing issues, we have a certified technical team available to provide support 24/7. This is how we can cater to our client's needs. I recommend Zimbra to small-scale and enterprise customers. Anyone, even those with 5 users, can opt for Zimbra. Overall, I rate the solution a nine out of ten.

Quotes from Members

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

Pros

"Exchange Online plays a significant role in our business. It controls all our emails, so we'd be in a lot of trouble if we didn't have that. It's an essential product."
"It is very manageable."
"The most valuable feature of the solution is its integration with Microsoft Outlook and Microsoft Teams for shared calendars."
"Exchange Online's best feature is its webmail platform."
"The features and flexibility in Microsoft Exchange Online cannot be found in any other email solutions—everything we need is there, and we do not have any complaints about it."
"It is a scalable product. We are using it for 500 users."
"The overall usage was all good."
"The product enables us to have remote meetings."
"The logs, troubleshooting, and tracking we have found to be the most valuable features. We have any issues with lost messages the features are useful. It is very easy to track and log."
"Zimbra Collaboration's best feature is its compatibility with Microsoft's ActiveSync protocol, which allows users to use Outlook on Windows or MacOS."
"Zimbra Collaboration's sharing features are most valuable."
"Network NG Modules are valuable to us."
"We can control all the data in my IT infrastructure."
"Zimbra Collaboration has a good web interface."
"The Zimbra Collaboration's most valuable feature is web access."
"The solution is easy to implement."
 

Cons

"Technical support can be improved by shortening the response time and increasing their knowledge."
"I don't like it in general. It sort of has that Microsoft flavor to it, which is just the style they use and the way they color things and lay them out."
"Improving the methods for inputting email signatures could be beneficial for the product."
"It should integrate better with social media formats."
"I would like to see better security added to Microsoft Exchange Online in the area of phishing or spam emails."
"It will be much better if the tool is integrated with OpenAI."
"From an IT perspective, we need clearer documentation to understand the product’s configuration process."
"I think there should be an incorporation of DLP on the business premium version of Exchange, as well."
"I can confidently say that Zimbra is good enough for 2,000 client users. But, at the same time, if my client needs more than that and we have two options—Zimbra or Microsoft—I'm going with Microsoft because many admins will speak to Microsoft's ability to handle that many."
"The product must be more customizable."
"Zimbra must improve its solution to make it easy so that the users don't have to use webmail to connect to their accounts and log in to webmail every time. This is something that is lacking in Zimbra Collaboration. They should provide a better way to easily connect email applications on the desktop to the Zimbra server. They should also try to have more functionality for storage management, like Microsoft Exchange. Currently, the management of the email data must be done manually in Zimbra Collaboration, which we are finding very difficult. They should provide a way to save emails so that you can have more space on the server and storage. Because of the lack of this functionality, we are planning to migrate to Microsoft Exchange. Microsoft Exchange provides a better way to manage storage than Zimbra Collaboration. You cannot have a mail solution without storage management because emails will always increase. Zimbra Collaboration also needs tools for management. More back-office tools are required to manage the whole mailbox and space. You don't only manage emails but also the documents attached to the emails. Therefore, you require tools to select and decide what do you want to save or how do you want to free up space in your infrastructure."
"In the next release, Zimbra Collaboration should include a security feature to allow access for mobile device administrators."
"The installation is not straightforward, it can take two days for the full implementation."
"We have had an issue with security."
"It would be great if a group chat feature were created to allow for a team environment."
"I would like to see a Microsoft schedule function added."
 

Pricing and Cost Advice

"The subscription fee is monthly."
"The pricing could be improved."
"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."
"I have no opinion."
"The licensing cost increased at least 15 to 20 percent recently and it would be helpful for them to be reduced."
"The costs of this platform vary based on subscriptions, but it is generally reasonable."
"There is an annual enterprise subscription to use Microsoft Exchange Online. The price is reasonable."
"My company needs to make monthly payments towards the licensing costs attached to the product. I feel that the price of the product is affordable."
"The solution is not expensive compared to other products."
"On a scale of one to ten, where one is cheap, and ten is expensive, I rate the price a four"
"We do not pay for licenses to use this solution."
"We pay yearly licenses for Zimbra Collaboration."
"Zimbra Collaboration is expensive, and there is no perpetual license option."
"Zimbra Collaboration is less expensive than Microsoft Exchange. Zimbra works for small companies because it is not expensive. Zimbra Collaboration has more security tools than Microsoft Exchange. If you are choosing between Zimbra Collaboration and Microsoft Exchange, you have to take into account the cost of security tools with Microsoft Exchange. When you purchase Microsoft Exchange, you will also have to purchase tools for security, which adds to the cost. The migration from Zimbra Collaboration to another email solution is very simple and easy. Migration from Microsoft Exchange to another email solution is very difficult. Microsoft doesn't allow migration that easily. In fact, you have to pay for tools to do that. You have to buy some expensive tools to migrate."
"When it comes to the licensing of Zimbra Collaboration, my license covers the servers and I find its terms to be much simpler than those of Microsoft Exchange."
"Zimbra Collaboration offers a good price-to-feature ratio."
report
Use our free recommendation engine to learn which Email Applications solutions are best for your needs.
881,082 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
12%
Comms Service Provider
10%
Government
9%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business40
Midsize Enterprise16
Large Enterprise40
By reviewers
Company SizeCount
Small Business19
Midsize Enterprise3
Large Enterprise7
 

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?
There is room for improvement in Microsoft Exchange Online. Technical support for Microsoft is good, but in all fairness, I sometimes think more can be done. I have personally tried exploring with ...
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 Zimbra Collaboration?
The most valuable feature of Zimbra for our team's productivity is its efficiency in handling email communication.
 

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
NEC Biglobe, City of Ventura, Monterey Bay Aquarium Research Institute, Hola Publishing, BIG, Sleepwell, LaFayette College, Xmission, DNA, Ring Line, Future Group, TIGC
Find out what your peers are saying about Microsoft Exchange Online vs. Zimbra Collaboration and other solutions. Updated: December 2025.
881,082 professionals have used our research since 2012.