IceWarp vs Zimbra Collaboration comparison

IceWarp and Zimbra are both solutions in the Email Applications category. IceWarp is ranked #10 with an average rating of 8.3, while Zimbra is ranked #6 with an average rating of 8.0. IceWarp holds a 4.9% mindshare in EA, compared to Zimbra’s 6.9% mindshare. Additionally, 90% of IceWarp users are willing to recommend the solution, compared to 96% of Zimbra users who would recommend it.

IceWarp

Read 17 IceWarp reviews

2,164 Views
1,666 Comparison Views

90% willing to recommend

Zimbra Collaboration

Read 28 Zimbra Collaboration reviews

2,475 Views
2,376 Comparison Views

96% willing to recommend

IceWarp

Zimbra Collaboration

Comparison Buyer's Guide

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Executive SummaryUpdated on May 21, 2025

Zimbra Collaboration and IceWarp compete in the collaborative software market. IceWarp appeals with its extensive feature set, while Zimbra attracts those looking for competitive pricing and support.

Features: Zimbra Collaboration is known for its comprehensive email and calendaring features with effective platform integration. The system is designed with real-time control through its management console, offering premium features like mobile management and seamless synchronization. It's valued for its open-source nature and customizable options, facilitating robust collaboration features. IceWarp provides strong email capabilities and an all-encompassing suite boasting instant messaging and video conferencing, alongside tools for smart document management and team chat features that enable file sharing and real-time collaboration.

Room for Improvement: Zimbra could enhance ease of use for non-technical users, improve its two-factor authentication system, and offer better document collaboration tools compared to cloud giants like Microsoft and Google. IceWarp faces challenges with the advancement of its document management tools, needs more comprehensive smart document archiving features, and could benefit from providing more extensive customization options beyond current implementations.

Ease of Deployment and Customer Service: Zimbra stands out with its open-source platform that supports scalability and benefits from a community-driven support mechanism. Its deployment is straightforward with comprehensive documentation. IceWarp offers a flexible deployment process with typically faster setup periods, complemented by professional customer service that assists with configuration and troubleshooting needs.

Pricing and ROI: Zimbra offers lower initial setup costs, appealing to budget-conscious buyers seeking quick ROI while maintaining high functionality standards. It provides an affordable alternative for organizations mindful of software expenses. IceWarp may involve higher initial investments, yet its extensive feature set is designed to provide substantial long-term ROI for businesses that value integrated communication solutions.

To learn more, read our detailed IceWarp vs. Zimbra Collaboration Report (Updated: March 2026).

Buyer's Guide

IceWarp vs. Zimbra Collaboration

March 2026

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Helped 885,789 peers since 2012

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

10th

Average Rating

8.4

Reviews Sentiment

7.0

Number of Reviews

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

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of April 2026, in the Email Applications category, the mindshare of IceWarp is 4.9%, down from 5.6% compared to the previous year. The mindshare of Zimbra Collaboration is 6.9%, down from 9.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Email Applications Mindshare Distribution
Product	Mindshare (%)
Zimbra Collaboration	6.9%
IceWarp	4.9%
Other	88.2%

Email Applications

Featured Reviews

AvinashLotke

Delivery Head at Team Computers

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.

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Muhammad Talha Baig

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.

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Quotes from Members

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

Pros

"The solution is easy to manage and includes features such as smart documents and the archiving of user data."

"The solution is inexpensive which is its main benefit."

"Its price is the most valuable. It is definitely one of the lowest price solutions."

"It has great communication capabilities for team chatting and web conferences."

"IceWarp offers very extended cross-platform communication solutions."

"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."

"An effective, functional, very good tool for controlling resources."

"As the license of our company is very affordable per year and per user, and considering the almost-zero administration needs, I would say that the cost is returned in the first three months, compared to other solutions."

More IceWarp pros

"Zimbra Collaboration is a good tool for video calls...Zimbra Collaboration's initial setup phase was easy."

"The stability is good and keeps getting better with each new update."

"The backup and storage management features of Zimbra Collaboration are valuable."

"Zimbra Collaboration has integrated a lot of their party tools and they have good documentation available."

"The configuration is simple."

"The Zimbra Collaboration's most valuable feature is web access."

"I think Zimbra is more reliable and competitive than Microsoft because they offer an open-source version."

"Zimbra Collaboration's best feature is its compatibility with Microsoft's ActiveSync protocol, which allows users to use Outlook on Windows or MacOS."

More Zimbra Collaboration pros

Cons

"Although it is not a tool, video conferencing should be scalable and operate in a professional and efficient way."

"Support should be improved. Most of the time, the queries are not resolved within the SLA."

"Our customers sometimes have problems receiving mail."

"I would like to have a trial for mobile applications and more documentation similar to Google Drive with mobile applications."

"We attempted to obtain support for deleted documents through the representatives in Mumbai, but they did not have an answer for us."

"With multiple databases for VOIP, chat and web IMAP, maintenance is cumbersome."

"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."

More IceWarp cons

"The solution could use more integration with third-party tools."

"Server deployment and the GUI for emails should be better."

"Because of the lack of this functionality, we are planning to migrate to Microsoft Exchange."

"Zimbra Collaboration does not have a solution roadmap as aggressive as the new collaboration mail solutions. Additionally, they can have a better interface and integration with single sign-on."

"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."

"The product must be more customizable."

"There are security and performance issues which is one of the concerns of using an open-source product."

"Some issues cause the solution not to function correctly or to cause downtime once a month."

More Zimbra Collaboration cons

Pricing and Cost Advice

"Costs far less than other solutions."

"The license is based on the number of users."

"The solution is inexpensive which is its main benefit."

"There are various licensing plans available based on geographic zone."

"I would rate the pricing and eight out of ten."

"It is definitely one of the lowest price solutions."

"The solution is priced well."

"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."

More IceWarp pricing and cost advice

"On a scale of one to ten, where one is cheap, and ten is expensive, I rate the price a four"

"The solution is competitively priced."

"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."

"I use Zimbra Collaboration's community version. We may move to the enterprise version since prices are affordable."

"There is an annual standard licensing fee to use Zimbra Collaboration and there is no other cost."

"We do not pay for licenses to use this solution."

"The solution is not expensive compared to other products."

More Zimbra Collaboration pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

15%

Manufacturing Company

13%

Comms Service Provider

11%

Financial Services Firm

Comms Service Provider

10%

Computer Software Company

10%

Government

Financial Services Firm

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	12
Midsize Enterprise	4
Large Enterprise	5

By reviewers
Company Size	Count
Small Business	19
Midsize Enterprise	3
Large Enterprise	7

Questions from the Community

What do you like most about IceWarp?

It's scalable and stable.

See all answers

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.

See all answers

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...

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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...

See all answers

What is your experience regarding pricing and costs for Zimbra Collaboration?

The solution is competitively priced.

See all answers

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...

See all answers

Comparisons

Zoho Mail vs IceWarp

Compared 14% of the time

Google Workspace vs IceWarp

Compared 11% of the time

Microsoft Exchange Online vs IceWarp

Compared 10% of the time

Microsoft Exchange vs IceWarp

Compared 9% of the time

KerioConnect vs IceWarp

Compared 7% of the time

More IceWarp Competitors

Open-Xchange vs Zimbra Collaboration

Compared 20% of the time

Microsoft Exchange vs Zimbra Collaboration

Compared 18% of the time

Microsoft Exchange Online vs Zimbra Collaboration

Compared 10% of the time

Google Workspace vs Zimbra Collaboration

Compared 10% of the time

HCL Domino vs Zimbra Collaboration

Compared 5% of the time

More Zimbra Collaboration Competitors

Product Reports

Buyer's Guide

IceWarp

March 2026

Download IceWarp product report

Buyer's Guide

Zimbra Collaboration

March 2026

Download Zimbra Collaboration product report

Overview

IceWarp helps thousands of organizations streamline all areas of business communication and become more profitable by providing Mail Server complete with GroupWare, Calendaring and Document Management, accessible through an intuitive WebClient, simple to setup in WebAdmin. Customize with add-ons: spam and virus protection, Instant Messaging with video calls, mobile sync and more.

IceWarp

Zimbra Collaboration provides administrators and their end users innovative features that solve the challenges faced by organizations using today's legacy communications infrastructure.

Zimbra

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

Buyer's Guide

IceWarp vs. Zimbra Collaboration

March 2026

Free Report: IceWarp vs. Zimbra Collaboration

Find out what your peers are saying about IceWarp vs. Zimbra Collaboration and other solutions. Updated: March 2026.

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