Amazon WorkMail vs KerioConnect comparison

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 8.0, while GFI is ranked #9 with an average rating of 8.8. Amazon Web Services (AWS) holds a 7.4% mindshare in EA, compared to GFI’s 4.1% mindshare. Additionally, 85% 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 13 Amazon WorkMail reviews

2,685 Views
2,148 Comparison Views

85% willing to recommend

KerioConnect

Read 11 KerioConnect reviews

1,612 Views
1,483 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: December 2025).

Buyer's Guide

Amazon WorkMail vs. KerioConnect

December 2025

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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

7.2

Number of Reviews

Ranking in other categories

Cloud Email (2nd)

KerioConnect

Ranking in Email Applications

9th

Average Rating

7.2

Reviews Sentiment

7.3

Number of Reviews

Ranking in other categories

Email Archiving (6th)

Mindshare comparison

As of January 2026, in the Email Applications category, the mindshare of Amazon WorkMail is 7.4%, down from 10.7% compared to the previous year. The mindshare of KerioConnect is 4.1%, down from 4.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Email Applications Market Share Distribution
Product	Market Share (%)
Amazon WorkMail	7.4%
KerioConnect	4.1%
Other	88.5%

Email Applications

Featured Reviews

Ramkumar Kolpurath

Co-Founder & CTO at a consultancy with 11-50 employees

Seamless email communication improves cost-effectiveness and security with valuable tracking features

The features of Amazon WorkMail that I have found the most valuable so far include sending emails and tracking whether the email is read or not. I find the feature that checks how many emails have been successfully sent and how many of them have been opened very useful, because in our application, we know the usage of the emails. 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. The encryption meets my expectations.

Read full review

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

"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."

"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."

"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 SES is very easy to configure."

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

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

"There is no need for me to set up security."

More Amazon WorkMail pros

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

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

"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."

"We have contacted technical support a handful of times and received some assistance."

"The most valuable features are its ease of use, excellent pricing, and it is platform agnostic."

"The user interface is good."

"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."

"It's relatively simple to use."

More KerioConnect pros

Cons

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

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

"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."

"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."

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

More Amazon WorkMail cons

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

"KerioConnect is stable as long as you use a strong password."

"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."

"I would like to see better support from their support team."

"KerioConnect continues to improve with regular updates throughout the year. They must be added to the roadmap, which requires approval."

"You cannot integrate with other services like Google Docs, Google Assistant, Google Calendar, etc."

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

More KerioConnect cons

Pricing and Cost Advice

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

"The solution should improve its price."

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

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

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

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

"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."

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Top Industries

By visitors reading reviews

University

Computer Software Company

Comms Service Provider

Retailer

Comms Service Provider

13%

Computer Software Company

11%

Manufacturing Company

Performing Arts

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	9
Midsize Enterprise	1
Large Enterprise	5

By reviewers
Company Size	Count
Small Business	10
Midsize Enterprise	2

Questions from the Community

What do you like most about Amazon WorkMail?

We use the tool for transactional emails and marketing.

See all answers

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 do you like most about KerioConnect?

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

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

Comparisons

Google Workspace vs Amazon WorkMail

Compared 57% of the time

Microsoft Exchange Online vs Amazon WorkMail

Compared 14% of the time

ProtonMail vs Amazon WorkMail

Compared 4% of the time

SendGrid vs Amazon WorkMail

Compared 3% of the time

Fortinet FortiMail Cloud vs Amazon WorkMail

Compared 3% of the time

More Amazon WorkMail Competitors

Microsoft Exchange vs KerioConnect

Compared 43% of the time

Zimbra Collaboration vs KerioConnect

Compared 21% of the time

IceWarp vs KerioConnect

Compared 10% of the time

Microsoft Exchange Online vs KerioConnect

Compared 9% of the time

Google Workspace vs KerioConnect

Compared 6% of the time

More KerioConnect Competitors

Product Reports

Buyer's Guide

Amazon WorkMail

January 2026

Download Amazon WorkMail product report

Buyer's Guide

KerioConnect

January 2026

Download KerioConnect product report

Also Known As

Amazon SES

No data available

Overview

Amazon WorkMail is a secure, managed business email and calendar service with support for existing desktop and mobile email client applications. Amazon WorkMail gives users the ability to seamlessly access their email, contacts, and calendars using the client application of their choice, including Microsoft Outlook, native iOS and Android email applications, any client application supporting the IMAP protocol, or directly through a web browser. You can integrate Amazon WorkMail with your existing corporate directory, use email journaling to meet compliance requirements, and control both the keys that encrypt your data and the location in which your data is stored. You can also set up interoperability with Microsoft Exchange Server, and programmatically manage users, groups, and resources using the Amazon WorkMail SDK.

Amazon Web Services (AWS)

Kerio Connect, a messaging and collaboration solution, meets the needs of small and mid-sized businesses while offering a robust feature lineup. Business users enjoy support for their favorite email client and easy web-based access. Kerio Connect is highly stable—so you can focus on business rather than unexpected downtime and recovery.

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

December 2025

Free Report: Amazon WorkMail vs. KerioConnect

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