Amazon WorkMail vs KerioConnect comparison

Why PeerSpot?

Amazon Web Services (AWS) and GFI are both solutions in the Email Applications category. Amazon Web Services (AWS) is ranked #4 with an average rating of 8.5, while GFI is ranked #8 with an average rating of 10.0. Amazon Web Services (AWS) holds a 11.1% mindshare in EA, compared to GFI’s 3.5% mindshare. Additionally, 86% of Amazon Web Services (AWS) users are willing to recommend the solution, compared to 62% of GFI users who would recommend it.

Amazon WorkMail

Read 14 Amazon WorkMail reviews

5,656 Views
4,129 Comparison Views

86% willing to recommend

KerioConnect

Read 11 KerioConnect reviews

2,457 Views
1,818 Comparison Views

62% willing to recommend

Amazon WorkMail

KerioConnect

Comparison Buyer's Guide

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Executive SummaryUpdated on May 21, 2025

KerioConnect and Amazon WorkMail compete in the email and collaboration category. KerioConnect tends to have more satisfied users regarding pricing and support, while Amazon WorkMail excels with its comprehensive feature set, justifying its cost.

Features: KerioConnect's valuable features include robust security options, integrated antivirus and antispam, and flexible deployment options. Amazon WorkMail is recognized for seamless integration with AWS services, advanced mobile access features, and broader cloud capabilities.

Room for Improvement: KerioConnect could enhance its cloud integration, mobile app functionality, and scalability. Amazon WorkMail may improve by addressing its learning curve, increasing support for non-AWS integrations, and simplifying its user interface.

Ease of Deployment and Customer Service: KerioConnect offers a straightforward installation with options for on-premises or cloud deployment, supported by responsive customer service. Amazon WorkMail provides a cloud-based model leveraging AWS support, but its integration within AWS may pose a learning curve for those unfamiliar with the ecosystem.

Pricing and ROI: KerioConnect generally has fewer upfront costs with options for a perpetual license, presenting predictable ROI. Amazon WorkMail uses a subscription pricing model correlated with AWS usage, aligning with its feature set, potentially delivering higher ROI through enhanced productivity.

To learn more, read our detailed Amazon WorkMail vs. KerioConnect Report (Updated: November 2026).

Buyer's Guide

Amazon WorkMail vs. KerioConnect

November 2026

Download the complete report

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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)

KerioConnect

Ranking in Email Applications

8th

Average Rating

7.2

Reviews Sentiment

7.3

Number of Reviews

Ranking in other categories

Email Archiving (7th)

Mindshare comparison

As of November 2026, in the Email Applications category, the mindshare of Amazon WorkMail is 11.1%, up from 8.4% compared to the previous year. The mindshare of KerioConnect is 3.5%, down from 4.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Email Applications Mindshare Distribution
Product	Mindshare (%)
Amazon WorkMail	11.1%
KerioConnect	3.5%
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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Marcelino Mongcal

Senior Systems Tech/Admin at Samco Software Inc.

A seamless setup ensures smooth communication with comprehensive support

We remain a partner with Sophos and use XG S Firewalls without AWS implementation. We only use Sophos endpoint and Sophos Central. We host some clients on-premise while others we host remotely. The VPN connection is easy and proprietary, so it's not open to any other VPN clients. Communication with other mail servers is seamless. It can communicate with Gmail and Outlook without issues, provided the DNS settings are correct. We monitor our servers and security logs, implementing GeoIP blocking. We frequently block China and India IPs due to brute force attacks on our servers. We have extensive experience with KerioConnect. Backing up and maintaining it is straightforward compared to Microsoft Exchange, making it administrator-friendly. On a scale of 1-10, this solution rates an 8.

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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 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."

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

"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."

"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."

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

"Amazon SES is very easy to configure."

"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."

"WorkMail works very well, and the functionality is fine."

More Amazon WorkMail pros

"It's relatively simple to use."

"KerioConnect has integration with 365. We can use Outlook, which has its client and can be used with Apple devices. It integrates with the App Store and Microsoft Office. It has a smart router. The spam filtering and antivirus are good."

"As long as the operating is stable, the Kerio connect will be very stable as well, so we don't have any problem with it."

"We use the solution as a mail server. It connects with Outlook and is used for calendaring and similar tasks."

"What I like most about Kerio Connect is that it supports ActiveSync, and that is its most critical feature. The solution is also a nice, simple, robust, and stable mail server."

"The most valuable features are security and privacy because you installed it on your server, within your company premises, not in the cloud."

"Kerio Connect is secure, flexible, and easy to control from the user interface."

"The user interface is good."

More KerioConnect pros

Cons

"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."

"There is room for improvement in the support. It's just that customer support, though good, takes time to resolve issues."

"It would be nice if they had a what you say is what you get editor to build newsletters like MailChimp has."

"The product should improve technical support."

"There is room for improvement in the scalability."

"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 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."

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

More Amazon WorkMail cons

"Most of our clients use Outlook and Kerio Connect. Occasionally, Kerio can be a bit slow."

"Having a native Outlook map integration would make Kerio Connect better."

"Most of our clients use Outlook and Kerio Connect. Occasionally, Kerio can be a bit slow. They could make it faster to get onto the web interface without so much load time. It's just slow with Outlook, however, for some reason."

"We cannot compete with them because they're fully integrated with their applications."

"The search and archiving documentation capabilities need to be stronger."

"I don't particularly like this solution. I would not recommend this solution to others."

"It could be simpler to use and install, but I still wouldn't use it because there isn't a compelling use case."

"This is just a cost, it's not something that's driving our business forward; it's just foundational."

More KerioConnect cons

Pricing and Cost Advice

"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."

"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 price of Kerio Connect is better when comparing it to others solutions."

"The solution's pricing depends on how long you plan to keep it because you pay on a per-year basis. You might have a one-time setup cost for something like Microsoft Exchange or a Linux mail server. I'd say this solution is expensive on a per-year basis, almost 2000-3000 dollars annually. It doesn't seem to pay off yet, so we're considering switching to another product."

"The pricing is about $3 per mailbox per month."

"KerioConnect has a first-time cost and yearly subscription. It is not expensive."

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Top Industries

By visitors reading reviews

Manufacturing Company

14%

Comms Service Provider

12%

Financial Services Firm

University

Manufacturing Company

12%

Comms Service Provider

11%

Outsourcing Company

10%

Construction 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	10
Midsize Enterprise	2

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

What is your experience regarding pricing and costs for KerioConnect?

The pricing is very easy to understand. As a partner, we have a monitoring system that informs us when subscriptions expire, allowing us to handle renewals. The pricing is very competitive.

See all answers

What needs improvement with KerioConnect?

Since KerioConnect is a setup and go solution, everything works on its own. The only administrative tasks required are keeping it up to date, monitoring security logs, and ensuring protection from ...

See all answers

What is your primary use case for KerioConnect?

Small medium-sized businesses are our primary focus, particularly in warehouse distribution and retail sectors. We are a reseller and purchase directly from Sophos.

See all answers

Comparisons

Google Workspace vs Amazon WorkMail

Compared 54% of the time

Microsoft Exchange Online vs Amazon WorkMail

Compared 5% of the time

Brevo vs Amazon WorkMail

Compared 4% of the time

SendGrid vs Amazon WorkMail

Compared 4% of the time

ProtonMail vs Amazon WorkMail

Compared 3% of the time

More Amazon WorkMail Competitors

Microsoft Exchange vs KerioConnect

Compared 12% of the time

Zimbra Collaboration vs KerioConnect

Compared 11% of the time

Open-Xchange vs KerioConnect

Compared 9% of the time

IceWarp vs KerioConnect

Compared 9% of the time

Microsoft Exchange Online vs KerioConnect

Compared 7% of the time

More KerioConnect Competitors

Product Reports

Buyer's Guide

Amazon WorkMail

October 2026

Download Amazon WorkMail product report

Buyer's Guide

KerioConnect

October 2026

Download KerioConnect 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)

KerioConnect delivers easy-to-use and secure email, calendar, and collaboration tools compatible with Office, Apple, and ActiveSync. Cost-effective and flexible, it suits on-premise installations, especially for SMBs seeking privacy and security.

KerioConnect offers a comprehensive email server experience with minimal resource needs and effective spam filtering. Compatible across platforms, it supports Outlook, enabling organizations to manage corporate communications efficiently. Its ability to host multiple domains makes it suitable for sectors like warehouse distribution and retail, with installation options that enhance security and privacy. However, faster Outlook integration, improved MS Teams and CRM system integration, and AI functionalities are sought after by users. Some demand a cloud version, Linux support, and better documentation. Still, KerioConnect remains a reliable choice for those needing on-premise capabilities.

What are KerioConnect's Key Features?

Ease of Use: Simplified interface for seamless navigation.
Robust Security: Advanced protection measures to safeguard data.
Spam Filtering: Efficiently reduces unwanted emails.
Platform Compatibility: Integrates with Office, Apple, and ActiveSync.
Log Analysis: Offers detailed insights for server management.
Multiple Domain Support: Manages diverse domains with ease.

What Benefits Should Users Expect?

Cost Efficiency: Lowers operational costs compared to alternatives.
Resource Minimization: Requires minimal system resources.
Deployment Flexibility: Allows tailored on-premise installations.
Enhanced Security: Provides privacy through internal hosting options.
Reliable Support: Access to reseller services from Sophos.

KerioConnect is widely utilized in SMBs across sectors like retail and warehouse distribution for its capability to handle multiple domains and integrate with Outlook for communication management. Resellers offer it as a dependable on-site email management solution, letting businesses maintain oversight and security control.

GFI

Sample Customers

Expedia, Intuit, Royal Dutch Shell, Brooks Brothers

Southern Tier Brewing Company, Innotta, Baustoff + Metall, Hamifleurs, Chanson TV, Ryman Stationery

Buyer's Guide

Amazon WorkMail vs. KerioConnect

November 2026

Free Report: Amazon WorkMail vs. KerioConnect

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