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 8.0, while Zimbra is ranked #6 with an average rating of 8.0. IceWarp holds a 5.1% mindshare in EA, compared to Zimbra’s 7.1% 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

2,479 Views
1,711 Comparison Views

90% willing to recommend

Zimbra Collaboration

Read 28 Zimbra Collaboration reviews

2,780 Views
2,641 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: April 2026).

Buyer's Guide

IceWarp vs. Zimbra Collaboration

April 2026

Download the complete report

Helped 894,830 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 May 2026, in the Email Applications category, the mindshare of IceWarp is 5.1%, down from 5.3% compared to the previous year. The mindshare of Zimbra Collaboration is 7.1%, down from 8.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Email Applications Mindshare Distribution
Product	Mindshare (%)
Zimbra Collaboration	7.1%
IceWarp	5.1%
Other	87.8%

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

Vidya Shree

CTO at Molecular Connections Private Limited

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…

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

"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 groupware module is the most valuable feature."

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

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

"If you have a small to medium business and you require a professional collaboration server that focuses on the main services of emails and calendar scheduling, I recommend IceWarp."

"The solution has a very good log-in to the UI when compared to other solutions."

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

More IceWarp pros

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

"The logs, troubleshooting, and tracking we have found to be the most valuable features. We have any issues with lost messages the features are useful. It is very easy to track and log."

"Good email solution and it's open-source."

"It has all collaboration features, such as document sharing, video conferencing, chatting, task sharing, and calendar sharing."

"The most valuable feature of Zimbra Collaboration is email functionality."

"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."

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

"Zimbra Collaboration has a good web interface."

More Zimbra Collaboration pros

Cons

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

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

"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."

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

"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."

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

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

"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

"I would like to see a Microsoft schedule function added."

"The support was lacking in my experience. However, recently the support I received was good. Perhaps they have improved."

"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."

"There can be difficulties resolving problems on the server side when problems arise."

"File sharing permissions with Nextcloud integration need improvement."

"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."

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

More Zimbra Collaboration cons

Pricing and Cost Advice

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

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

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

"Costs far less than other solutions."

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

"Our licensing is on a yearly basis. There were no additional costs."

"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."

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

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"

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

"The price of the solution is low."

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

"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."

"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."

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

894,830 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Computer Software Company

15%

Comms Service Provider

12%

Manufacturing Company

11%

Financial Services Firm

Computer Software Company

10%

Comms Service Provider

10%

Outsourcing Company

Government

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

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 12% of the time

Google Workspace vs IceWarp

Compared 11% of the time

Microsoft Exchange Online vs IceWarp

Compared 9% of the time

Microsoft Exchange vs IceWarp

Compared 8% of the time

Barracuda Email Security Gateway vs IceWarp

Compared 7% of the time

More IceWarp Competitors

Open-Xchange vs Zimbra Collaboration

Compared 18% of the time

Microsoft Exchange vs Zimbra Collaboration

Compared 16% of the time

Google Workspace vs Zimbra Collaboration

Compared 10% of the time

Microsoft Exchange Online 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

May 2026

Download IceWarp product report

Buyer's Guide

Zimbra Collaboration

April 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

April 2026

Free Report: IceWarp vs. Zimbra Collaboration

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

DOWNLOAD NOW

894,830 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.