Amazon WorkMail vs Zimbra Collaboration comparison

Amazon Web Services (AWS) and Zimbra are both solutions in the Email Applications category. Amazon Web Services (AWS) is ranked #4 with an average rating of 7.5, while Zimbra is ranked #10. Amazon Web Services (AWS) holds a 9.9% mindshare in EA, compared to Zimbra’s 6.2% mindshare. Additionally, 86% of Amazon Web Services (AWS) users are willing to recommend the solution, compared to 96% of Zimbra users who would recommend it.

Amazon WorkMail

Read 14 Amazon WorkMail reviews

4,631 Views
3,427 Comparison Views

86% willing to recommend

Zimbra Collaboration

Read 28 Zimbra Collaboration reviews

2,980 Views
2,801 Comparison Views

96% willing to recommend

Amazon WorkMail

Zimbra Collaboration

Comparison Buyer's Guide

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Executive SummaryUpdated on May 21, 2025

Zimbra Collaboration and Amazon WorkMail compete in enterprise email and collaboration solutions. Zimbra Collaboration excels in pricing and support, while Amazon WorkMail is favored for its features, making its higher pricing justified for many.

Features: Zimbra Collaboration provides email, chat, calendar integration, and open-source flexibility for customization. Amazon WorkMail offers seamless AWS integration, robust security, and compliance features. The security and cloud integration of Amazon WorkMail are notable advantages over Zimbra Collaboration's customizable environment.

Room for Improvement: Zimbra Collaboration could enhance its integration with third-party apps, improve user interface design, and strengthen security features. Amazon WorkMail may benefit from greater customization options, enhanced offline capabilities, and improved user training materials.

Ease of Deployment and Customer Service: Zimbra Collaboration offers flexible deployment for varied IT environments with strong customer support. Amazon WorkMail excels with AWS infrastructure, simplifying integration and scalability while providing extensive documentation. Leveraging AWS's support ecosystem, Amazon WorkMail has a deployment advantage, but Zimbra's flexibility suits specific configurations.

Pricing and ROI: Zimbra Collaboration, with its lower initial setup cost, presents a compelling ROI for budget-conscious organizations seeking feature-rich solutions. Amazon WorkMail, though more costly, is valued for its integration capabilities and security, often leading to greater long-term benefits. Zimbra Collaboration's initial cost-effectiveness is clear, yet Amazon WorkMail might deliver better long-term value for businesses focused on security and integration.

To learn more, read our detailed Amazon WorkMail vs. Zimbra Collaboration Report (Updated: August 2026).

Buyer's Guide

Amazon WorkMail vs. Zimbra Collaboration

August 2026

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Helped 908,834 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

Amazon WorkMail

Ranking in Email Applications

4th

Average Rating

8.4

Reviews Sentiment

6.4

Number of Reviews

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

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
Product	Mindshare (%)
Amazon WorkMail	9.9%
Zimbra Collaboration	6.2%
Other	83.9%

Email Applications

Featured Reviews

GeorgiMarinov

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.

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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.

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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."

"The product is very user-friendly."

"It is very stable. I haven't faced any issues."

"The most valuable feature of the Amazon WorkMail for me is the SMC server. It makes my work much easier, especially since I often work with Spring Boot. There are many built-in APIs in Spring Boot that help with messaging. What I appreciate about it is that it simplifies the process. I don't need to write much code; I define the credentials in my properties or environment variables. The Java Message API, an internal API from Spring Boot, does most of the work. I set up the properties and connected them to the SMC server, and I can send emails."

"We have cut our costs in half."

"The best feature is that Amazon SES provides verified email messages."

"We use the tool for transactional emails and marketing."

"Amazon WorkMail integrates with Route 53 and other AWS services, providing a seamless experience when using AWS infrastructure."

More Amazon WorkMail pros

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

"The solution is easy to implement."

"The most valuable feature of Zimbra Collaboration is the cost."

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

"The pricing of the solution is excellent; it's a newer solution with a modern interface and dashboard, the interface itself is very responsive and easy to navigate, the initial setup is very simple and straightforward, the stability is good and keeps getting better with each new update, and the solution really does scale very easily."

"The Zimbra Collaboration's most valuable feature is web access."

"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."

"Most valuable to us is the fact that it's open source, so it's possible to do a lot of customization."

More Zimbra Collaboration pros

Cons

"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."

"There is room for improvement in the scalability."

"When we first set up an email on Amazon SES, they had to verify it, which was not fast enough."

"WorkMail is not available in all the regions."

"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."

"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 like to see detailed reports on email success and failure rates."

"The only issue is the price, which is far too expensive."

More Amazon WorkMail cons

"The support was lacking in my experience."

"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."

"We have had an issue with security."

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

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

"Because of the lack of this functionality, we are planning to migrate to Microsoft Exchange."

"The solution’s forums don't have much information or documentation on administration tasks."

"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."

More Zimbra Collaboration cons

Pricing and Cost Advice

"WorkMail does require a license, it is, per user."

"The solution should improve its price."

"It's very cheap. The cheapest among all the services available."

"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 is competitively priced."

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

"Zimbra Collaboration offers a good price-to-feature ratio."

"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."

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

"The solution is not expensive compared to other products."

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

More Zimbra Collaboration pricing and cost advice

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Top Industries

By visitors reading reviews

Manufacturing Company

13%

Comms Service Provider

10%

University

Financial Services Firm

Outsourcing Company

10%

Computer Software Company

Construction Company

Comms Service Provider

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	9
Midsize Enterprise	2
Large Enterprise	5

By reviewers
Company Size	Count
Small Business	19
Midsize Enterprise	3
Large Enterprise	7

Questions from the Community

What needs improvement with Amazon WorkMail?

See all answers

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...

See all answers

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 ...

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

Comparisons

Google Workspace vs Amazon WorkMail

Compared 49% of the time

Microsoft Exchange Online vs Amazon WorkMail

Compared 5% of the time

SendGrid vs Amazon WorkMail

Compared 4% of the time

ProtonMail vs Amazon WorkMail

Compared 4% of the time

ZeptoMail vs Amazon WorkMail

Compared 2% of the time

More Amazon WorkMail Competitors

Microsoft Exchange vs Zimbra Collaboration

Compared 15% of the time

Open-Xchange vs Zimbra Collaboration

Compared 14% of the time

Google Workspace vs Zimbra Collaboration

Compared 12% of the time

Microsoft Exchange Online vs Zimbra Collaboration

Compared 9% of the time

Zarafa vs Zimbra Collaboration

Compared 4% of the time

More Zimbra Collaboration Competitors

Product Reports

Buyer's Guide

Amazon WorkMail

August 2026

Download Amazon WorkMail product report

Buyer's Guide

Zimbra Collaboration

July 2026

Download Zimbra Collaboration product report

Also Known As

Amazon SES

No data available

Overview

Amazon WorkMail provides a fully managed email service, offering scalability, high availability, and seamless AWS integration, ensuring secure and efficient communication.

Amazon WorkMail is designed to support a wide range of email communication needs, from transactional and marketing messages to internal notifications. It enhances email reliability through SES integration, utilizes machine learning for better deliverability, and offers robust security through domain protection and encryption. With pay-as-you-go pricing, it allows cost control, suitable for businesses seeking an email management solution with capabilities like user management, API integration, email tracking, and comprehensive organization features. While improvements are suggested for areas like email backup, editor functionality, and cross-regional synchronization, WorkMail remains a powerful tool for managing high-volume email distributions efficiently.

What are the key features of Amazon WorkMail?

Scalability: Supports growing email demands with minimal effort.
High Availability: Ensures consistent email service access.
AWS Integration: Seamlessly integrates with AWS services for enhanced functionality.
Email Delivery: Utilizes SES for reliable email dispatch.
Security: Provides domain protection and encryption for secure communication.
APIs: Facilitates easier integration with existing tools.

What benefits should users consider in reviews?

Cost Efficiency: Pay-as-you-go pricing helps manage expenses.
User Confidence: Encryption and security enhance trust.
User Management: Streamlines operations with efficient email management.
Improved Deliverability: Machine learning optimizes delivery rates.

Amazon WorkMail finds application in diverse industries, from e-commerce to technology, where managing transactional emails, newsletters, and notifications is crucial. Organizations leverage its integration capabilities with tools like Gmail and Outlook to automate and streamline communications, manage customer interactions effectively, and enhance operational efficiency.

Amazon Web Services (AWS)

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

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

Buyer's Guide

Amazon WorkMail vs. Zimbra Collaboration

August 2026

Free Report: Amazon WorkMail vs. Zimbra Collaboration

Find out what your peers are saying about Amazon WorkMail vs. Zimbra Collaboration and other solutions. Updated: August 2026.

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