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Amazon WorkMail vs Zimbra Collaboration comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on May 21, 2025

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

Amazon WorkMail
Ranking in Email Applications
4th
Average Rating
8.4
Reviews Sentiment
6.4
Number of Reviews
14
Ranking in other categories
Cloud Email (2nd)
Zimbra Collaboration
Ranking in Email Applications
10th
Average Rating
8.0
Reviews Sentiment
7.3
Number of Reviews
28
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Email Applications category, the mindshare of Amazon WorkMail is 9.9%, up from 9.3% compared to the previous year. The mindshare of Zimbra Collaboration is 6.2%, down from 8.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Applications Mindshare Distribution
ProductMindshare (%)
Amazon WorkMail9.9%
Zimbra Collaboration6.2%
Other83.9%
Email Applications
 

Featured Reviews

GM
Owner at Marinov
Centralized email accounts have streamlined routing, security checks, and long-term organization
While using Amazon WorkMail over time, I haven't encountered substantial disappointments, but there have been usual glitches with the web interface. For instance, while the service is generally 99.5% perfect, I experience issues like the folder structure I set up sometimes not remembering the state of expanded and collapsed nodes after refreshing the page. This lack of persistence in which nodes are collapsed or opened can be frustrating. However, since it's a minor technical issue, I doubt the average user would notice it. If Amazon WorkMail were not discontinuing, I wouldn't think there is much to improve or enhance about it. It is standard enough and easy to use, and any glitches are minor, not worth evolving or disrupting its current functionality. As for whether the user interface is intuitive and if I'm satisfied with its flexibility and customizability, there are some minor features lacking, but I don't feel a need for changes since it works as designed. The most crucial aspect is that I can set up my address book with the complex organizational structure needed for the accounts connecting to AWS. The lower-level functionalities suit me well enough. Other services often have customizable views of email representations with senders, subjects, and even snippets of content. While my external application on mobile can show customizable lines with my email list, Amazon WorkMail does not offer that feature. I don't really need it, but it would be a nice addition for power users.
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

"The most valuable thing is that emails sent through SES have a delivery rate of greater than ninety percent."
"We have cut our costs in half."
"The best feature is that Amazon SES provides verified email messages."
"Amazon WorkMail integrates with Route 53 and other AWS services, providing a seamless experience when using AWS infrastructure."
"Amazon SES is very easy to configure."
"The product is very user-friendly."
"WorkMail works very well, and the functionality is fine."
"The encryption of emails, both in transit and at rest, has benefited our security strategy as it is a layer of security that provides us better confidence for customers and also internally tracks the security aspects."
"For an SMB, it is a recommendable email solution."
"The web interface is powerful and easy to use."
"Most valuable to us is the fact that it's open source, so it's possible to do a lot of customization."
"The stability is good and keeps getting better with each new update."
"We can control all the data in my IT infrastructure."
"It is the best open source collaboration suite that I know, because it provides high availability and more performance than the other solutions."
"For a small company, Zimbra Collaboration is good because it is simple, inexpensive, and not very difficult to deploy."
"Good email solution and it's open-source."
 

Cons

"It would be nice if they had a what you say is what you get editor to build newsletters like MailChimp has."
"The only issue is the price, which is far too expensive."
"If we can have a completely managed backup solution where we have a tiered backup or a tiered archival to be able to retrieve emails, it would be great."
"It would be ideal to have detailed data and reporting on email opens, clicks, bounces, and other metrics, as well as integration with other business intelligence tools."
"Amazon WorkMail's user interface could be more intuitive and user-friendly."
"Now, I'm not very happy because they are discontinuing the service, and I will have to find a new one to migrate everything, including all my filters and routing rules."
"WorkMail is not available in all the regions."
"There is room for improvement in the support. It's just that customer support, though good, takes time to resolve issues."
"It would be great if a group chat feature were created to allow for a team environment."
"There are some bugs we found that could be fixed."
"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."
"Zimbra is not very stable, but it's okay."
"There are some security issues."
"The solution could improve by making it easier to use."
"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."
"In the next release, Zimbra Collaboration should include a security feature to allow access for mobile device administrators."
 

Pricing and Cost Advice

"It's very cheap. The cheapest among all the services available."
"The solution should improve its price."
"I rate the solution's pricing as one out of ten. It is close to being cheap. Sometimes, the tool offers a generous amount of free messages, up to 40,000, which is great for startups like ours. This means that we don't accumulate any costs for some months because we stay within the free usage tier. When we exceed the free allocation, the costs are reasonable, and no hidden charges exist."
"WorkMail does require a license, it is, per user."
"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."
"Zimbra Collaboration is expensive, and there is no perpetual license option."
"If you choose the network edition, it is a little pricier. They have the open-source edition too which is only community supported."
"We pay yearly licenses for Zimbra Collaboration."
"I use Zimbra Collaboration's community version. We may move to the enterprise version since prices are affordable."
"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."
"We do not pay for licenses to use this solution."
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Top Industries

By visitors reading reviews
Manufacturing Company
13%
Comms Service Provider
10%
University
8%
Financial Services Firm
7%
Outsourcing Company
10%
Computer Software Company
8%
Construction Company
8%
Comms Service Provider
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise2
Large Enterprise5
By reviewers
Company SizeCount
Small Business19
Midsize Enterprise3
Large Enterprise7
 

Questions from the Community

What needs improvement with Amazon WorkMail?
While using Amazon WorkMail over time, I haven't encountered substantial disappointments, but there have been usual glitches with the web interface. For instance, while the service is generally 99....
What advice do you have for others considering Amazon WorkMail?
When assessing the security features offered by Amazon WorkMail, such as encryption protocols, I check the security protocols on my phone using an external application that displays them immediatel...
What is your primary use case for Amazon SES?
My usual use cases for Amazon WorkMail started from my interest in all the AWS services, which are numerous, like hundreds, and how I could set up an online document service, something like Google ...
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...
 

Also Known As

Amazon SES
No data available
 

Overview

 

Sample Customers

Expedia, Intuit, Royal Dutch Shell, Brooks Brothers
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 Amazon WorkMail vs. Zimbra Collaboration and other solutions. Updated: August 2026.
908,834 professionals have used our research since 2012.