IceWarp vs Zimbra Collaboration comparison

Why PeerSpot?

IceWarp and Zimbra are both solutions in the Email Applications category. IceWarp is ranked #11, while Zimbra is ranked #9. 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

3,362 Views
1,984 Comparison Views

90% willing to recommend

Zimbra Collaboration

Read 28 Zimbra Collaboration reviews

3,241 Views
3,047 Comparison Views

96% willing to recommend

IceWarp

Zimbra Collaboration

Comparison Buyer's Guide

Download the report

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: November 2026).

Buyer's Guide

IceWarp vs. Zimbra Collaboration

November 2026

Download the complete report

Helped 920,929 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

11th

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

9th

Average Rating

8.0

Reviews Sentiment

7.3

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of November 2026, in the Email Applications category, the mindshare of IceWarp is 4.7%, down from 5.2% compared to the previous year. The mindshare of Zimbra Collaboration is 6.0%, down from 7.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.

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

"It's scalable and stable."

"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."

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

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

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

"The groupware module is the most valuable feature."

"An effective, functional, very good tool for controlling resources at a low cost."

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

More IceWarp pros

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

"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."

"The solution is easy to implement."

"Zimbra Collaboration is mainly used for messaging, emails, calendars, video conferencing, and document sharing."

"Zimbra Collaboration has a good web interface."

"The web interface is powerful and easy to use."

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

More Zimbra Collaboration pros

Cons

"Support is not good and it is challenging to receive a timely response."

"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."

"Customer service is not always helpful."

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

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

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

"It is difficult to disable user rights on the console so some users accidentally delete their documents or user details."

More IceWarp cons

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

"The log files need to be improved; they need to show us more information because a lot of detail is lacking and that's not very helpful or insightful."

"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 should provide a desktop client. Right now, we are using a web browser for accessing our emails. There should also be a desktop client."

"We have had an issue with security."

"There are some bugs we found that could be fixed."

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

More Zimbra Collaboration cons

Pricing and Cost Advice

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

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

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

"Costs far less than other solutions."

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

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

"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."

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"

"We pay yearly licenses for Zimbra Collaboration."

"Zimbra Collaboration is expensive, and there is no perpetual license option."

"The price of the solution is low."

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

"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."

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

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

More Zimbra Collaboration pricing and cost advice

See which vendors are best for you

Use our free recommendation engine to learn which Email Applications solutions are best for your needs.

See recommendations

920,929 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Manufacturing Company

14%

Comms Service Provider

14%

Outsourcing Company

11%

Financial Services Firm

Outsourcing Company

11%

Manufacturing Company

Financial Services Firm

Construction Company

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

Ask a question

Earn 20 points

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 7% of the time

Microsoft Exchange Online vs IceWarp

Compared 7% of the time

Check Point Anti-Spam and Email Security Software Blade vs IceWarp

Compared 7% of the time

Microsoft Exchange vs IceWarp

Compared 5% of the time

Barracuda Email Security Gateway 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 13% of the time

Open-Xchange vs Zimbra Collaboration

Compared 10% of the time

Microsoft Exchange Online vs Zimbra Collaboration

Compared 9% of the time

KerioConnect vs Zimbra Collaboration

Compared 8% of the time

More Zimbra Collaboration Competitors

Product Reports

Buyer's Guide

IceWarp

October 2026

Download IceWarp product report

Buyer's Guide

Zimbra Collaboration

October 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

November 2026

Free Report: IceWarp vs. Zimbra Collaboration

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

DOWNLOAD NOW

920,929 professionals have used our research since 2012.

See our IceWarp vs. Zimbra Collaboration report.

See our list of best Email Applications vendors.

We monitor all Email Applications reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.