No more typing reviews! Try our Samantha, our new voice AI agent.

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
93
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 June 2026, in the Email Applications category, the mindshare of Microsoft Exchange Online is 9.0%, down from 13.7% compared to the previous year. The mindshare of Zimbra Collaboration is 6.7%, down from 8.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Applications Mindshare Distribution
ProductMindshare (%)
Microsoft Exchange Online9.0%
Zimbra Collaboration6.7%
Other84.3%
Email Applications
 

Featured Reviews

Yogesh Autade - PeerSpot reviewer
Senior Security Engineer at Softcell Technologies Limited
Integrated email security has improved phishing response and provides better threat visibility
Microsoft Exchange Online could be improved with more intuitive administration workflows, better troubleshooting visibility, and simpler mail flow analysis for complex environments. We would also appreciate more granular reporting, faster access to detailed message tracking data, and improved alerting around suspicious mailbox activity to help security and messaging teams investigate issues more efficiently. One area where Microsoft Exchange Online could improve is the administrative user experience. Some advanced mail flow, compliance, and troubleshooting tasks still require navigating multiple Microsoft portals. A more unified management interface and deeper integration visibility across Exchange, Defender, and Microsoft 365 security tools would make day-to-day operations more efficient for administrators and SOC teams.
Vidya Shree - PeerSpot reviewer
CTO at Molecular Connections Private Limited
Deploys quickly and has a good web interface
Zimbra Collaboration has a good web interface When it comes to administration tasks like configuring specific filters or group signatures, I have to dig into the configuration since there's nothing in the graphical or web interface. The solution’s forums don't have much information or…

Quotes from Members

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

Pros

"One of my favourite features is the Microsoft Calendar, which we use for booking appointments, scheduling calls, and managing resource rooms and devices. The Online Mailbox feature is also crucial because it allows us to communicate effectively within and outside the organization, contributing to our business growth."
"It is a reasonable solution."
"Using Microsoft Exchange is the easiest way to sync with Outlook."
"The tech support have always been very nice and helpful to us."
"The solution generally works well. We can send and receive emails just fine."
"Microsoft Exchange Online is an easy-to -use email solution."
"Exchange Online doesn't just do email, it allows for collaboration with inbuilt chat and calling facilities and document sharing."
"I chose Microsoft Exchange Online to cut this risk on our day-to-day operations for organizational communication with clients."
"It has all collaboration features, such as document sharing, video conferencing, chatting, task sharing, and calendar sharing."
"We can control all the data in my IT infrastructure."
"The most valuable feature of Zimbra Collaboration is the cost."
"One of the most valuable features involves the solution's automatic backup, which I find to be pretty simple and straightforward, and obviates the need for additional software."
"Zimbra Collaboration's sharing features are most valuable."
"For an SMB, it is a recommendable email solution."
"Most valuable to us is the fact that it's open source, so it's possible to do a lot of customization."
"The most valuable feature of Zimbra for our team's productivity is its efficiency in handling email communication."
 

Cons

"Microsoft Exchange Online could improve the management usage, it should be more user-friendly."
"There is an annual enterprise subscription could improve by having more features."
"The pricing could be a bit lower."
"Microsoft Exchange Online can improve message delivery. There are times we receive a message that the email failed to be delivered, and there is no reason given. We sometimes have emails that are flagged as spam that are not. We cannot do anything about it because it's not managed by us, it's managed by Microsoft."
"The configuration of the solution's on-premise version is a little bit difficult, and its troubleshooting is more difficult than the installation itself."
"The SaaS platform performance could be improved. At a previous company, we used this same solution on-premises. The data exchange was much faster compared to the SaaS platform and we sometimes experience lags."
"There is room for improvement in terms of optimization."
"We'd like to have the ability to recall emails on the web. I'm not sure if that is available yet."
"It would be great if a group chat feature were created to allow for a team environment."
"Server deployment and the GUI for emails should be better."
"We have had an issue with security."
"I would like to see a Microsoft schedule function added."
"There are some security issues."
"Some issues cause the solution not to function correctly or to cause downtime once a month."
"It does have a few bugs. However, they are small and can be worked around."
"There are security and performance issues which is one of the concerns of using an open-source product."
 

Pricing and Cost Advice

"It is a reasonable solution."
"We have yearly licensing costs."
"I think it's just awesome. There's no argument about how much value you get on the per user, for user expenditure. It's really great, I don't have any issues with it. I think it's excellent."
"It is a cluster solution."
"We have a license per user scenario."
"I have no opinion."
"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 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 only requires mailbox features, we can recommend Plan One or Plan 2. We can suggest an E3 or E5 license if they need the entire Office suite. There are also premium subscriptions for enterprise customers, offering additional security features. Overall, I don't find the pricing costly because Microsoft provides many features and security capabilities, making it reliable for all customers, depending on their requirements."
"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."
"We do not pay for licenses to use this solution."
"I use Zimbra Collaboration's community version. We may move to the enterprise version since prices are affordable."
"On a scale of one to ten, where one is cheap, and ten is expensive, I rate the price a four"
"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."
"We are using perpetual licenses. We have deployed it in our local data center, and we buy perpetual licenses on a per-user basis."
"The solution is not expensive compared to other products."
"We pay yearly licenses for Zimbra Collaboration."
report
Use our free recommendation engine to learn which Email Applications solutions are best for your needs.
900,644 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Financial Services Firm
10%
Comms Service Provider
8%
Manufacturing Company
8%
Computer Software Company
7%
Computer Software Company
9%
Outsourcing Company
9%
Comms Service Provider
8%
Construction Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business41
Midsize Enterprise17
Large Enterprise41
By reviewers
Company SizeCount
Small Business19
Midsize Enterprise3
Large Enterprise7
 

Questions from the Community

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?
Microsoft Exchange Online could be improved with more intuitive administration workflows, better troubleshooting visibility, and simpler mail flow analysis for complex environments. We would also a...
What is your primary use case for Microsoft Exchange Online?
Microsoft Exchange Online serves as our enterprise email hosting platform, providing secure mail flow management and centralized messaging services for users across multiple locations. From a secur...
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 needs improvement with Zimbra Collaboration?
When it comes to administration tasks like configuring specific filters or group signatures, I have to dig into the configuration since there's nothing in the graphical or web interface. The soluti...
 

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: June 2026.
900,644 professionals have used our research since 2012.