IceWarp vs Zimbra Collaboration comparison

Why PeerSpot?

IceWarp and Zimbra are both solutions in the Email Applications category. IceWarp is ranked #8 with an average rating of 9.0, while Zimbra is ranked #10. IceWarp holds a 4.7% mindshare in EA, compared to Zimbra’s 6.0% 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

3,130 Views
1,972 Comparison Views

90% willing to recommend

Zimbra Collaboration

Read 28 Zimbra Collaboration reviews

3,202 Views
3,010 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: September 2026).

Buyer's Guide

IceWarp vs. Zimbra Collaboration

September 2026

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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

8th

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

10th

Average Rating

8.0

Reviews Sentiment

7.3

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of October 2026, in the Email Applications category, the mindshare of IceWarp is 4.7%, down from 5.3% compared to the previous year. The mindshare of Zimbra Collaboration is 6.0%, down from 8.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Email Applications Mindshare Distribution
Product	Mindshare (%)
IceWarp	4.7%
Zimbra Collaboration	6.0%
Other	89.3%

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.

Read full review

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.

Read full review

Quotes from Members

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

Pros

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

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

"The solution's voice services work well for our company."

"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."

"With all of the features that are available for the users included with the license, it is reasonably priced."

"IceWarp has multiple applications that are easy to use for many people."

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

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

More IceWarp pros

"Premium features, such as auto discovery and archiving, mobile management and HSM, make life much easier."

"A lot of other products like Microsoft Exchange offer email or collaboration features, but they are not as fast as Zimbra."

"Most valuable to us is the fact that it's open source, so it's possible to do a lot of customization."

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

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

"Zimbra Collaboration's sharing features are most valuable."

"It is the best open source collaboration suite that I know, because it provides high availability and more performance than the other solutions."

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

More Zimbra Collaboration pros

Cons

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

"The solution needs improvements in security, particularly regarding document management."

"The solution should improve the mailing list feature. Google has a similar feature where you can automate sending files to different people in a sequence, but that feature is no longer available in the current version of IceWarp. Other features may also have been removed in the current version."

"There are some feature improvements possible the way we use it as a hosting provider, but for most we currently have workarounds."

"The Exchange compatibility mode is rather limited."

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

"Although the documentation is extensive and in depth, you must familiarize yourself with it before taking full advantage of the product."

"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."

More IceWarp cons

"The installation is not straightforward, it can take two days for the full implementation."

"The solution’s forums don't have much information or documentation on administration tasks."

"Zimbra is not very stable, but it's okay."

"The product must be more customizable."

"The tool should improve its multi-cloud feature."

"We had a couple of issues with stability, but nothing that I couldn't work around or fix myself. Zimbra is a powerful product, but since VMware bought it, changes and bug fixes have been very slow in coming."

"The new patches are, at times, not so good, so we don't install them, causing the tool to be not so stable overall."

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

More Zimbra Collaboration cons

Pricing and Cost Advice

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

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

"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."

"Costs far less than other solutions."

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

"Price-wise, it's a cheaper solution, without a doubt. Price is the reason we are still using the tool."

"Pricing and licensing is very competitive and in some cases, cheap."

"The solution is priced well."

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"

"Zimbra Collaboration offers a good price-to-feature ratio."

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

"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 competitively priced."

"If you choose the network edition, it is a little pricier. They have the open-source edition too which is only community supported."

"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."

More Zimbra Collaboration pricing and cost advice

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Top Industries

By visitors reading reviews

Comms Service Provider

14%

Manufacturing Company

13%

Outsourcing Company

10%

Financial Services Firm

Outsourcing Company

11%

Manufacturing Company

Computer Software Company

Comms Service Provider

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 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...

See all answers

What is your primary use case for IceWarp?

We managed approximately one thousand user accounts with IceWarp for company communications. We utilized features such as smart attachments and document solutions. Our setup was primarily on-premis...

See all answers

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

Comparisons

Google Workspace vs IceWarp

Compared 8% of the time

Microsoft Exchange Online vs IceWarp

Compared 7% of the time

Barracuda Email Security Gateway vs IceWarp

Compared 6% of the time

Microsoft Exchange vs IceWarp

Compared 6% of the time

KerioConnect vs IceWarp

Compared 5% of the time

More IceWarp Competitors

Microsoft Exchange vs Zimbra Collaboration

Compared 15% of the time

Google Workspace vs Zimbra Collaboration

Compared 12% of the time

Open-Xchange vs Zimbra Collaboration

Compared 11% of the time

Microsoft Exchange Online vs Zimbra Collaboration

Compared 9% of the time

KerioConnect vs Zimbra Collaboration

Compared 7% of the time

More Zimbra Collaboration Competitors

Product Reports

Buyer's Guide

IceWarp

September 2026

Download IceWarp product report

Buyer's Guide

Zimbra Collaboration

September 2026

Download Zimbra Collaboration product report

Overview

IceWarp is a comprehensive communication platform featuring email server capabilities, cross-platform communication, conferencing, and collaboration to enhance team productivity.

Effective for managing substantial user accounts, IceWarp combines a unified interface with features such as chat rooms and file-sharing to optimize email communications and collaboration on both on-premises and cloud setups. Integrated with platforms like AWS and Outlook, its flexible plans cater to diverse storage needs, particularly in regions where space management is critical. IceWarp's strengths lie in TeamChat for enhanced email management, task assignment, and security via two-factor authentication with significant benefits in cost savings and smart document management.

What are IceWarp's most important features?

Email Server Capabilities: Provides reliable, secure email services.
Cross-platform Communication: Facilitates seamless interaction across devices.
Unified Interface: Offers a cohesive platform for chat rooms and file-sharing.
Outlook Sync: Ensures seamless integration with Outlook for convenient access.
TeamChat: Enhances email management and adds task assignment features.
Conferencing: Enables effective collaboration through audio and video conferencing.

What benefits and ROI should users look for?

Cost Savings: Reduces expenses with streamlined communication tools.
Ease of Management: Simplifies administration with a unified interface.
Enhanced Collaboration: Improves teamwork with real-time document sharing.
Security: Offers two-factor authentication for added data protection.

In industries like customer service and communications, IceWarp is often implemented to handle large-scale email management and collaboration. Its ability to integrate well with on-premises and cloud infrastructures, including major platforms like AWS and Outlook, makes it suitable for organizations with diverse storage requirements. Companies utilize IceWarp's conferencing and file-sharing capabilities to enhance remote communications and collaboration.

IceWarp

Zimbra Collaboration is a comprehensive tool for communication and collaboration, featuring easy account management and seamless integration capabilities with open-source customization. It's valued for premium functionalities like auto discovery and mobile synchronization, catering to small and medium-sized organizations.

Zimbra Collaboration provides essential features for business communication, including efficient account management via a centralized console and intuitive web interface. Designed for scalability and stability, it supports a range of functionalities from document sharing to video conferencing. Users benefit from its competitive pricing and open-source affordability. However, there's room for improvement in areas like backup, anti-spam, and mobile access, with a demand for better GUI, documentation, and language support. Zimbra's integration with third-party tools and strengthening video conferencing and storage management could enhance its appeal in various sectors.

What Are the Key Features of Zimbra Collaboration?

Centralized Console: Simplifies account management with an easy-to-use interface.
Open-Source Customization: Offers flexibility in adapting the platform to specific needs.
Seamless Integration: Allows smooth collaboration with existing tools and platforms.
Mobile Synchronization: Ensures access across devices for continuous productivity.
Anti-Spam Modules: Provides enhanced email security with built-in protections.

What Benefits Should Be Evaluated in Reviews?

Scalability: Grow with your organization's needs without compromising performance.
Affordability: Benefit from cost-effective features with competitive pricing.
Stability: Experience reliable and consistent performance across the platform.
Responsive Interface: Navigate effortlessly with a user-friendly design.

In industries like education and healthcare, Zimbra Collaboration implements effective email and collaboration solutions, offering robust security and seamless integration. It facilitates communication for organizations requiring reliable webmail support for numerous accounts, ensuring consistent performance and affordable scalability.

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

September 2026

Free Report: IceWarp vs. Zimbra Collaboration

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

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