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Amazon WorkMail 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:
 

Categories and Ranking

Amazon WorkMail
Ranking in Email Applications
4th
Average Rating
8.4
Reviews Sentiment
7.7
Number of Reviews
12
Ranking in other categories
Cloud Email (2nd)
Zimbra Collaboration
Ranking in Email Applications
5th
Average Rating
8.0
Number of Reviews
29
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of May 2025, in the Email Applications category, the mindshare of Amazon WorkMail is 9.7%, down from 10.3% compared to the previous year. The mindshare of Zimbra Collaboration is 8.8%, down from 10.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Applications
 

Featured Reviews

Michael Olayemi - PeerSpot reviewer
Provides free messages and helps to keep customers updated
The solution is quite low-level and lacks some advanced features. For example, it doesn't provide tracking capabilities, such as knowing how many users opened an email, which is crucial for email marketing. You would need to integrate these analytics with other tools to get them. I need to know if there has been a bounce and how customers interacted with the email. I would only suggest that Amazon WorkMail relax the rules for using Amazon SES in production. When you create an account, it starts in Sandbox mode, which means you can't use it in production right away. You must go through a process, message Amazon, and request to move it to production. Since Amazon is a big company, I feel customers shouldn't need this permission to use the service in production.
Muhammad Talha Baig - PeerSpot reviewer
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."
"Amazon SES is very easy to configure."
"It is very stable. I haven't faced any issues."
"Amazon SES can handle a high volume of emails, making it suitable for organizations with large email lists or that need to send a large number of emails on a regular basis."
"There is no need for me to set up security."
"The product is very user-friendly."
"It is highly available and scalable. It is also highly reliable. I don't lose any of the messages or emails. If there is an issue where the email sent operation failed, Amazon as a platform ensures that the send operation is retried, and the email reaches its destination. This way, it is highly reliable."
"Amazon WorkMail integrates with Route 53 and other AWS services, providing a seamless experience when using AWS infrastructure."
"Zimbra Collaboration has a good web interface."
"Zimbra Collaboration's best feature is its compatibility with Microsoft's ActiveSync protocol, which allows users to use Outlook on Windows or MacOS."
"Network NG Modules are valuable to us."
"The Zimbra Collaboration's most valuable feature is web access."
"The stability is good and keeps getting better with each new update."
"The most valuable feature of Zimbra Collaboration is email functionality."
"The backup and storage management features of Zimbra Collaboration are valuable."
"The configuration is simple."
 

Cons

"There is room for improvement in the scalability."
"There is room for improvement in the support. It's just that customer support, though good, takes time to resolve issues."
"Amazon WorkMail's user interface could be more intuitive and user-friendly."
"When we first set up an email on Amazon SES, they had to verify it, which was not fast enough."
"The product should improve technical support."
"I would like to see detailed reports on email success and failure rates."
"Email service is definitely a requirement from an enterprise standpoint. Many organizations have their own on-premise email services, which take a lot of memory, backup, and other resources. 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. I would like to be able to retrieve emails in real-time (hot retrieval), over the 90-days period (warm retrieval), and over the one-year period (cold retrieval). It would be useful to have tiered backup and retrieval. It would help us in managing emails better and have a better backup solution. So, backup is something that we require."
"The only issue is the price, which is far too expensive."
"It is good and competent, but you have to pay for video and group chat features."
"Zimbra Collaboration could improve the migration from a basic solution to a more containerized solution. For example, the installation should be able to extend to the containers and manage them with some solution, such as OpenShift or Kubernetes."
"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."
"There are some security issues."
"The antispam and antivirus features are hard to understand on mobile devices."
"The solution’s forums don't have much information or documentation on administration tasks."
"I would like to see a Microsoft schedule function added."
"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."
 

Pricing and Cost Advice

"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."
"The solution should improve its price."
"It's very cheap. The cheapest among all the services available."
"WorkMail does require a license, it is, per user."
"We do not pay for licenses to use this solution."
"Zimbra Collaboration offers a good price-to-feature ratio."
"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."
"It's very expensive. When we compare the cost with Google Workspace, it's so expensive."
"The price of the solution is low."
"We are using perpetual licenses. We have deployed it in our local data center, and we buy perpetual licenses on a per-user basis."
"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."
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Top Industries

By visitors reading reviews
Computer Software Company
17%
University
9%
Comms Service Provider
7%
Healthcare Company
7%
Computer Software Company
19%
Comms Service Provider
9%
Government
7%
Financial Services Firm
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Amazon WorkMail?
We use the tool for transactional emails and marketing.
What needs improvement with Amazon WorkMail?
Amazon WorkMail's user interface could be more intuitive and user-friendly. Integration with Gmail using both SMTP and POP3 would be beneficial.
What advice do you have for others considering Amazon WorkMail?
Currently, I don't have any advice about using Amazon WorkMail. Since I only use AWS and am unfamiliar with its competitors, I can't recommend it.
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...
What do you like most about Zimbra Collaboration?
The most valuable feature of Zimbra for our team's productivity is its efficiency in handling email communication.
 

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: April 2025.
849,963 professionals have used our research since 2012.