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IceWarp 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

IceWarp
Ranking in Email Applications
7th
Average Rating
8.4
Number of Reviews
17
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 IceWarp is 5.3%, down from 6.1% 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

AvinashLotke - PeerSpot reviewer
Useful for collaboration and storage but improvement is needed in API integration
The solution has traditional SSL integration, SAML, and Federation Services. In its latest version, it added SAML integration. However, it needs to work on API integration, especially for dashboards or integration with SAP for log and data system management. It doesn't yet have the kind of API that Google and Microsoft provide for synchronizing users with Active Directory. I think IceWarp needs to improve in a few areas. They have two types of admin consoles - a web-based one and a remote one. I'd like to see these combined into a single web-based admin console. The log reading and information system also needs improvement. The current way of showing incoming and outgoing logs isn't very clear. For new users, it's hard to understand these logs, especially compared to Office 365 and other systems with easier-to-read logs. They should also add an export option to get all logs with a single click whenever we need them.
Muhammad Talha Baig - PeerSpot reviewer
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

"An effective, functional, very good tool for controlling resources."
"The TeamChat feature has been really good for our email management. It lets us collaborate, share files, and invite guests like Google Spaces or Microsoft Teams. I like the two-factor authentication for security. However, they need to improve their document collaboration tools, as their Word, Excel, and PowerPoint features are basic compared to Microsoft and Google."
"The solution's voice services work well for our company."
"The solution is easy to manage and includes features such as smart documents and the archiving of user data."
"The most valuable feature of IceWarp is the chat rooms and file-sharing, they are useful. It is convenient that everything is in one place. You can easily share and collaborate documents, making the program's unity a significant advantage."
"IceWarp has multiple applications that are easy to use for many people."
"The groupware module is the most valuable feature."
"The solution has a very good log-in to the UI when compared to other solutions."
"The most valuable feature of Zimbra Collaboration is email functionality."
"The most valuable feature of Zimbra Collaboration is the cost."
"It has all collaboration features, such as document sharing, video conferencing, chatting, task sharing, and calendar sharing."
"The web interface is powerful and easy to use."
"Zimbra Collaboration's sharing features are most valuable."
"The solution is easy to implement."
"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."
"The stability is good and keeps getting better with each new update."
 

Cons

"Although the documentation is extensive and in depth, you must familiarize yourself with it before taking full advantage of the product."
"It is difficult to disable user rights on the console so some users accidentally delete their documents or user details."
"The solution needs improvements in security, particularly regarding document management."
"Our customers sometimes have problems receiving mail."
"The tool's configuration capabilities are not straightforward. Apart from that, if I want to archive emails into a vault so that they can be retrieved again later, the integration doesn't work, and IceWarp crashes."
"With multiple databases for VOIP, chat and web IMAP, maintenance is cumbersome."
"The solution has traditional SSL integration, SAML, and Federation Services. In its latest version, it added SAML integration. However, it needs to work on API integration, especially for dashboards or integration with SAP for log and data system management. It doesn't yet have the kind of API that Google and Microsoft provide for synchronizing users with Active Directory."
"The exchange compatibility mode is rather limited. Their technical support can also be better. They only provide online support, and there should be some option for escalating."
"It would be great if a group chat feature were created to allow for a team environment."
"Zimbra should provide a desktop client. Right now, we are using a web browser for accessing our emails. There should also be a desktop client."
"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."
"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."
"Some issues cause the solution not to function correctly or to cause downtime once a month."
"The tool should improve its multi-cloud feature."
"The solution could use more integration with third-party tools."
"They should enhance its online meeting features."
 

Pricing and Cost Advice

"There are various licensing plans available based on geographic zone."
"I would rate the pricing and eight out of ten."
"The license is based on the number of users."
"The solution is priced well."
"Price-wise, it's a cheaper solution, without a doubt. Price is the reason we are still using the tool."
"I don't see any challenges for the Indian market. For example, 1 GB is available for around 399 INR, and 2 GB for 499 INR. They offer a range of plans, from basic to professional and enterprise, with multiple features. IceWarp's aggressive pricing is competitive compared to other market solutions like Zoho and Microsoft. One significant advantage is that IceWarp does not impose user capping like Google and Microsoft, which allows for substantial cost savings and flexibility in user conversion."
"It is definitely one of the lowest price solutions."
"The solution is inexpensive which is its main benefit."
"Zimbra Collaboration is expensive, and there is no perpetual license option."
"The price of the solution is low."
"We are using perpetual licenses. We have deployed it in our local data center, and we buy perpetual licenses on a per-user basis."
"There is an annual standard licensing fee to use Zimbra Collaboration and there is no other cost."
"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."
"It's very expensive. When we compare the cost with Google Workspace, it's so expensive."
"We pay yearly licenses for Zimbra Collaboration."
"If you choose the network edition, it is a little pricier. They have the open-source edition too which is only community supported."
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Top Industries

By visitors reading reviews
Computer Software Company
18%
Comms Service Provider
10%
Manufacturing Company
8%
Financial Services Firm
7%
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 is your experience regarding pricing and costs for IceWarp?
IceWarp was very cost-effective, offering services at a significantly lower cost than Google, which was appealing for our organization.
What needs improvement with IceWarp?
The solution needs improvements in security, particularly regarding document management. Users currently have the rights to delete smart documents, which poses a challenge for administrators. A mor...
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.
 

Overview

 

Sample Customers

Marriott, Toyota, Sony, Wendy's, Canon
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 IceWarp vs. Zimbra Collaboration and other solutions. Updated: April 2025.
849,963 professionals have used our research since 2012.