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Microsoft Exchange Online vs Zimbra Collaboration 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
90
Ranking in other categories
No ranking in other categories
Zimbra Collaboration
Ranking in Email Applications
5th
Average Rating
8.0
Number of Reviews
29
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of May 2025, in the Email Applications category, the mindshare of Microsoft Exchange Online is 14.1%, down from 15.5% compared to the previous year. The mindshare of Zimbra Collaboration is 8.8%, down from 10.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Applications
 

Featured Reviews

NancyHartman - PeerSpot reviewer
Effective collaboration achieved with versatile features and good customer service
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 of scripting and programming knowledge is necessary. I am not an IT person; I am an educator, a trainer, a user. I want to get the work done. However, I find that the Exchange Server and possibly the way our company has set up access permissions require extensive programming knowledge. It might take six to eight weeks to get a programmer's time to build something, whereas I can use something like Smartsheet that will do everything I want without needing a programmer. Smartsheet is more end-user friendly compared to a Microsoft product. Microsoft believes an expert IT person should manage everything, however, I want to manage things on my own in a simplified way. That is not easy using the Exchange Server or Microsoft Office. It is not end-user friendly for development, and a programmer is needed. Once set up, using them as an end-user is fine. I find that the automations are not robust, and the FedRAMP systems are not robust. I have a few issues with Exchange and Office, but there's nothing I can do about it.
Vidya Shree - PeerSpot reviewer
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

"The most valuable features of Microsoft Exchange Online are spam filtering, 50 GB of email storage, good integration with Outlook, and ease of management."
"What I like about Microsoft Exchange Online is that it's a very convenient solution because it's part of the Microsoft business suite. This is the first email service I've used that lasted for many years, and I'm still using it because it's very convenient and it's suitable for my needs. Microsoft Exchange Online is the best product in the world for me because I don't remember any other service that's so well-accepted."
"One of the important features is the collaboration tool used in Office 365. The security and DLP mechanisms are also quite good."
"The initial setup is straightforward and is definitely easy."
"I enjoy not having to maintain the local infrastructure, local servers, local whatever. You use the software and don't have to worry about the details."
"The features of Microsoft Exchange Online are very intuitive and well-built, keeping the user experience in mind. The usability and the accessibility are the best aspects of this solution."
"The solution is easy to use and the cloud version has taken a lot of challenges away from the user."
"The most valuable feature is being able to assign an individual a task."
"Network NG Modules are valuable to us."
"The most valuable feature is sending messages as well as text and documents. It's a big solution for us since internal communication is a must in our organization."
"Zimbra Collaboration's best feature is its compatibility with Microsoft's ActiveSync protocol, which allows users to use Outlook on Windows or MacOS."
"The product is easy to set up."
"The configuration is simple."
"Zimbra Collaboration is light to manage. It works on the Linux operating system, which is far better to manage than Microsoft Windows. Microsoft Exchange works only on the Windows server. We prefer working on the Linux server for security reasons and ease of management. Zimbra Collaboration also has some integrated tools for security. It some modules to fight malware. These modules are not very powerful but are still doing a great job. Microsoft Exchange doesn't have a basic module. You have to purchase a security solution and add it to the solution. The cost of Zimbra Collaboration is one more reason for liking it. It is also very simple to migrate from Zimbra Collaboration to another email solution."
"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."
"We can control all the data in my IT infrastructure."
 

Cons

"When initially setting up, it took a bit of time because we had a lot of PST files with the users, and we had to migrate them batch by batch."
"We'd like to see more integration with other platforms."
"The licensing price of the solution could be lower."
"They should tighten their cloud security."
"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."
"I have found that Microsoft has vulnerabilities when it comes to Exchange Online. It has become the port of a lot of hacker attacks."
"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 support from the vendor is fine. However, it could be faster, and some of the agents could be more knowledgeable, but it is a large solution, there's a lot of information that the agents have to work with. I can't always expect when I get connected to the first-level agent that they will know absolutely everything. Sometimes there's no replacement for pure experience."
"Some issues cause the solution not to function correctly or to cause downtime once a month."
"There are some security issues."
"The solution could improve by making it easier to use."
"Zimbra Collaboration could improve the migration from a basic solution to a more containerized solution. For example, the installation should be able to extend to the containers and manage them with some solution, such as OpenShift or Kubernetes."
"It would be great if a group chat feature were created to allow for a team environment."
"The installation is not straightforward, it can take two days for the full implementation."
"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."
"It does have a few bugs."
 

Pricing and Cost Advice

"I find it reasonably priced."
"We have an enterprise agreement for licensing."
"The model is one which is pay-per-use go. There is no license. We are talking about per-user subscription-based use."
"The pricing for this solution is good. We renew our contract every three years. I would rate the pricing for this solution a three out of five."
"The cost is around $12 to $16 per user."
"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."
"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."
"There is an annual license required to use this Microsoft Exchange Online."
"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."
"There is an annual standard licensing fee to use Zimbra Collaboration and there is no other cost."
"Zimbra Collaboration is expensive, and there is no perpetual license option."
"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."
"I use Zimbra Collaboration's community version. We may move to the enterprise version since prices are affordable."
"The solution is not expensive compared to other products."
"Zimbra Collaboration offers a good price-to-feature ratio."
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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
19%
Comms Service Provider
9%
Government
7%
Financial Services Firm
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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...
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: April 2025.
851,604 professionals have used our research since 2012.