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 8.0, while Zimbra is ranked #6 with an average rating of 8.0. Amazon Web Services (AWS) holds a 7.5% mindshare in EA, compared to Zimbra’s 7.1% 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

3,372 Views
2,495 Comparison Views

86% willing to recommend

Zimbra Collaboration

Read 28 Zimbra Collaboration reviews

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

Buyer's Guide

Amazon WorkMail vs. Zimbra Collaboration

April 2026

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Helped 893,221 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

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 Amazon WorkMail is 7.5%, down from 9.7% 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 (%)
Amazon WorkMail	7.5%
Zimbra Collaboration	7.1%
Other	85.4%

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 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."

"We have cut our costs in half."

"Amazon SES is very easy to configure."

"Despite being an end-user service on AWS, the backend is complex enough to enable many useful features, I invested time in configuring it, and it worked flawlessly for six years."

"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."

"It is highly available and scalable, and it is also highly reliable; I don't lose any of the messages or emails because 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."

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

More Amazon WorkMail pros

"The backup and storage management features of Zimbra Collaboration are valuable."

"Despite sticking with Gmail for over a decade in terms of business, Zimbra have impressed me with some other aspects as well; if the time comes, I would prefer Zimbra to my current solution."

"Zimbra Collaboration is a good tool for video calls...Zimbra Collaboration's initial setup phase was easy."

"Premium features, such as auto discovery and archiving, mobile management and HSM, make life much easier."

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

"For an SMB, it is a recommendable email solution."

"The product is very stable."

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

More Zimbra Collaboration pros

Cons

"We are losing clients because the price my clients pay for email alone is nearly equal to the price they pay for an entire Microsoft Office license, which includes email."

"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."

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

"There is room for improvement in the scalability."

"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."

"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."

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

More Amazon WorkMail cons

"I can confidently say that Zimbra is good enough for 2,000 client users. But, at the same time, if my client needs more than that and we have two options—Zimbra or Microsoft—I'm going with Microsoft because many admins will speak to Microsoft's ability to handle that many."

"Zimbra is not very stable, but it's okay."

"The antispam and antivirus features are hard to understand on mobile devices."

"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."

"Server deployment and the GUI for emails should be better."

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

"The solution could use more integration with third-party tools."

"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."

More Zimbra Collaboration cons

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."

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

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

"The solution should improve its price."

"If you choose the network edition, it is a little pricier. They have the open-source edition too which is only community supported."

"The price of the solution is low."

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

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

"There is an annual standard licensing fee to use Zimbra Collaboration and there is no other cost."

"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."

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

More Zimbra Collaboration pricing and cost advice

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Top Industries

By visitors reading reviews

Comms Service Provider

10%

University

10%

Computer Software Company

Manufacturing Company

Comms Service Provider

10%

Computer Software Company

10%

Government

Outsourcing Company

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?

We are satisfied with Amazon WorkMail, as it is able to send emails and provide receipts, including the read and other statuses. Since we are doing more API side integrations, there does not seem t...

See all answers

What advice do you have for others considering Amazon WorkMail?

From the communication aspects, working with Amazon WorkMail has been seamless and cost-effective. My customers do not make any use of Amazon WorkMail's compatibility with Microsoft Active Director...

See all answers

What is your primary use case for Amazon SES?

We are an integrator, and we have a product in which we use Amazon WorkMail. We send emails on a daily basis in a batch mode to customers. We have about 50,000 emails across various customers.

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...

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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

Google Workspace vs Amazon WorkMail

Compared 43% of the time

Microsoft Exchange Online vs Amazon WorkMail

Compared 8% of the time

ProtonMail vs Amazon WorkMail

Compared 5% of the time

SendGrid vs Amazon WorkMail

Compared 4% of the time

Zoho Mail vs Amazon WorkMail

Compared 2% of the time

More Amazon WorkMail 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 Notes vs Zimbra Collaboration

Compared 4% of the time

More Zimbra Collaboration Competitors

Product Reports

Buyer's Guide

Amazon WorkMail

May 2026

Download Amazon WorkMail product report

Buyer's Guide

Zimbra Collaboration

April 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

April 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: April 2026.

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