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Google Workspace vs 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:
 

Mindshare comparison

As of April 2026, in the Email Applications category, the mindshare of Google Workspace is 14.7%, down from 23.3% compared to the previous year. 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
ProductMindshare (%)
Google Workspace14.7%
Zimbra Collaboration6.9%
IceWarp4.9%
Other73.5%
Email Applications
 

Featured Reviews

AR
Assosiate Professor at Palazzo del Mediterraneo
Collaborative work with students has improved but storage limitations and support issues remain
We have Google Workspace, and we use it primarily for Drive to collect items. We categorize folders with topics and material either for students or for research. We use Google Doc to share documents, especially when we assign homework to be corrected for peer correction or classroom correction. With Teams and Microsoft, we use it for collective calls and exam supervision because we use video surveillance through camera with Teams. We use Teams for meetings and to share material with students. The ability to share documents with students and assign them things and correct them in real time has been beneficial. You can verify what they write, and they can contribute and cooperate to create a collective document, which is something that our society nowadays requires. The ability to cooperate, especially those who work with languages and those who work with writing, need to learn how to cooperate. There is co-editing and co-writing, all these sorts of things. I love the fact that I can easily have access to folders that I can categorize and where I can upload research material and teaching material.
AvinashLotke - PeerSpot reviewer
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.
Muhammad Talha Baig - PeerSpot reviewer
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.

Quotes from Members

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

Pros

"It is quite a useful tool, allowing many people to work on a document where you can provide review comments, tag anybody to make the comment changes, and even attach a document in Google Chat."
"Google Workspace enhances my productivity within my organization."
"The product is user-friendly and knows how to appeal to a user. Google Docs accepts some of our requirements. Its most valuable feature is performance. The product's integrations are good."
"The features we use quite a lot are the mail and Google Drive. We can store documents and share documents between both employees here, locally in Sweden, and we have an office in the US as well. It's a very easy way to share information and documents, and have online meetings and stuff with Google Meet. We use it quite a lot."
"Its user interface is great; it's user-friendly, you don't have to look for support when using it, and even the presentations and the docs have all the formatting available, with very good reliability, cloud sync, and great real-time editing so we can mutually work on a document."
"I use Keep to assign tasks to a team of programmers, which is very easy."
"We are not seeking new requirements or additional features."
"In terms of collaboration and simple ease of use, I think Google is good."
"It's scalable and stable."
"An effective, functional, very good tool for controlling resources."
"The solution has a very good log-in to the UI when compared to other solutions."
"The solution is inexpensive which is its main benefit."
"The solution's voice services work well for our company."
"It has great communication capabilities for team chatting and web conferences."
"It has great communication capabilities for team chatting and web conferences."
"IceWarp offers very extended cross-platform communication solutions."
"The backup and storage management features of Zimbra Collaboration are valuable."
"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 the cost."
"Zimbra Collaboration is mainly used for messaging, emails, calendars, video conferencing, and document sharing."
"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."
"One of the premium features was customized rooms tailored to the collaboration needs. Many of the clients customize features such as organization logos and scanners."
"The backup and storage management features of Zimbra Collaboration are valuable."
"I think Zimbra is more reliable and competitive than Microsoft because they offer an open-source version."
 

Cons

"When I compare with Office 365, G Suite has fewer features."
"They could increase the number of third-party integrations on offer."
"I found that there is no desktop application for this solution, and that's a major fault of this application."
"I'm not sure if Google Drive has a customizing feature, however, if it did, then it would be better."
"Integration with Microsoft Outlook could be improved. The new integration was implemented last September, and we are facing some issues with OAuth 2.0 authentication."
"I find the price high for the full suite features. Compared to Exchange Online, the price might not be too high, but you cannot choose only one functionality. When you buy Google Workspace, you have to get everything, including file storage and communication tools, which I don't use."
"For Google Docs, if you upload a Word document up to Google Docs, it could mess up your formatting quite a bit."
"I think Meet is not as well-positioned as Zoom."
"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."
"Support is not good and it is challenging to receive a timely response."
"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."
"Customer service is not always helpful."
"The Exchange compatibility mode is rather limited."
"The database query for creating new database and querying about activities are too simplistic."
"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."
"It is difficult to disable user rights on the console so some users accidentally delete their documents or user details."
"There are security and performance issues which is one of the concerns of using an open-source product."
"The installation is not straightforward, it can take two days for the full implementation."
"They should enhance its online meeting features."
"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."
"The solution’s forums don't have much information or documentation on administration tasks."
"Server deployment and the GUI for emails should be better."
"I would like to see a Microsoft schedule function added."
"Zimbra is not very stable, but it's okay."
 

Pricing and Cost Advice

"We pay a monthly subscription for the use of this solution."
"We pay on yearly basis."
"There are several areas where a G Suite implementation can reduce costs: lower license fees than some competing products, reduced hardware, and IT support costs."
"I rate Google Workspace's pricing five to six out of ten. We do not pay any extra costs."
"It's about $8.30 up a user per month."
"The pricing is a bit on the higher side than normal. For a basic Google account it costs $100, but Enterprise is %150."
"Pricing is something concerning. We find the solution very expensive."
"It's cheaper to run a couple of users in a Google platform than what it would be with Microsoft Exchange."
"The solution is inexpensive which is its main benefit."
"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."
"I would rate the pricing and eight out of ten."
"Our licensing is on a yearly basis. There were no additional costs."
"There are various licensing plans available based on geographic zone."
"Price-wise, it's a cheaper solution, without a doubt. Price is the reason we are still using the tool."
"Costs far less than other solutions."
"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 price of the solution is low."
"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."
"The solution is not expensive compared to other products."
"On a scale of one to ten, where one is cheap, and ten is expensive, I rate the price a four"
"Zimbra Collaboration is expensive, and there is no perpetual license option."
"We do not pay for licenses to use this solution."
"Zimbra Collaboration offers a good price-to-feature ratio."
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Top Industries

By visitors reading reviews
Educational Organization
9%
Manufacturing Company
8%
Computer Software Company
8%
Comms Service Provider
8%
Computer Software Company
15%
Manufacturing Company
13%
Comms Service Provider
11%
Financial Services Firm
6%
Comms Service Provider
10%
Computer Software Company
10%
Government
8%
Financial Services Firm
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business64
Midsize Enterprise14
Large Enterprise28
By reviewers
Company SizeCount
Small Business12
Midsize Enterprise4
Large Enterprise5
By reviewers
Company SizeCount
Small Business19
Midsize Enterprise3
Large Enterprise7
 

Questions from the Community

What is your experience regarding pricing and costs for Google Workspace?
The company made the decision to migrate, so I'm not sure why specifically. The company is moving the data and the Mi...
What needs improvement with Google Workspace?
Before I was in a Microsoft environment, which had its own software that was not website-based. When I moved to Googl...
What is your primary use case for Google Workspace?
I have been using Google Workspace for file organizing, including Google Drive, Spreadsheet, Gmail, and Google Form, ...
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...
What needs improvement with IceWarp?
The solution needs improvements in security, particularly regarding document management. Users currently have the rig...
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 ...
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 c...
 

Also Known As

G-Suite Enterprise, G-Suite, Google Apps for Business, G Suite Basic, G Suite Business, G-Suite Basic, G-Suite Business, Google Vault
No data available
No data available
 

Overview

 

Sample Customers

There are over five million businesses that use Google Apps for Business worldwide. Some key customers include The Roche Group, National Geographic, American Red Cross, City of Los Angeles, Flight Centre, and Konica Minolta.
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 Google, Microsoft, Amazon Web Services (AWS) and others in Email Applications. Updated: March 2026.
885,444 professionals have used our research since 2012.