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KerioConnect vs Microsoft Exchange comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on May 21, 2025

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

KerioConnect
Ranking in Email Applications
9th
Average Rating
7.2
Reviews Sentiment
7.3
Number of Reviews
11
Ranking in other categories
Email Archiving (7th)
Microsoft Exchange
Ranking in Email Applications
3rd
Average Rating
8.4
Reviews Sentiment
6.6
Number of Reviews
95
Ranking in other categories
Wireless Email (2nd)
 

Mindshare comparison

As of March 2026, in the Email Applications category, the mindshare of KerioConnect is 4.1%, down from 4.8% compared to the previous year. The mindshare of Microsoft Exchange is 9.9%, down from 11.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Applications Mindshare Distribution
ProductMindshare (%)
Microsoft Exchange9.9%
KerioConnect4.1%
Other86.0%
Email Applications
 

Featured Reviews

MM
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.
SJ
Manager IT Support at Naubahar Bottling Company (Pvt.) Ltd. Gujranwala Pakistan
Efficient email management with seamless integration
We previously used Microsoft Exchange but have moved to an MDN email solution due to cost and user growth Microsoft Exchange is a user-friendly and easy-to-deploy solution, which is beneficial for handling emails even without professional support. It is effective in managing email integration…

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"Backing up and maintaining it is straightforward compared to Microsoft Exchange, making it administrator-friendly."
"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."
"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."
"Kerio Connect is secure, flexible, and easy to control from the user interface. It has many security features able to be controlled from one place, such as anti-spam. I have found it very convenient. Additionally, you can analyze log files and share folders which is helpful."
"We have contacted technical support a handful of times and received some assistance."
"The solution is easy to maintain, unlike Exchange. It's easy to create multiple domains and back up and restore if needed. It also has good security features like anti-spam and antivirus."
"The most valuable features are security and privacy because you installed it on your server, within your company premises, not in the cloud."
"It is easy to use and we can allow many users because now our users are scattered They over a wide area. We can use it from anywhere. That is the main benefit for us."
"The setup was straightforward."
"Microsoft Exchange is a user-friendly product that is easy to manage and configure."
"The search tools are good."
"The integration of Microsoft Exchange with other tools allows for seamless collaboration and increased productivity within teams."
"The product works very well."
"Microsoft Exchange is a user-friendly and easy-to-deploy solution, which is beneficial for handling emails even without professional support."
"The ability to share information, appointments, and agendas easily is the big value of Microsoft Exchange."
 

Cons

"You cannot integrate with other services like Google Docs, Google Assistant, Google Calendar, etc."
"KerioConnect continues to improve with regular updates throughout the year. They must be added to the roadmap, which requires approval."
"We cannot compete with them because they're fully integrated with their applications."
"The search and archiving documentation capabilities need to be stronger."
"KerioConnect is stable as long as you use a strong password."
"Having a native Outlook map integration would make Kerio Connect better."
"The solution could improve the redundancy because we only have one copy of the Kerio Connect server on our hardware. The next step for us is to move to the cloud and if Kerio does not have a cloud version available they should release one"
"We are considering switching to Microsoft Exchange. One reason is that it doesn't improve our workflow and doesn't integrate well with Microsoft 365 applications."
"It is costly, so it depends on how much you want to pay."
"We would prefer to be able to manage the solution on the cloud."
"Exchange took time to be deployed. It requires extensive configuration and setting up servers and managing internal network access."
"The product or service could be improved in terms of Microsoft Outlook client compatibility."
"The main problem with Microsoft products is that we're constantly required to install patches and fixes."
"There is a problem when scheduling an event for the whole day."
"I would like to see Microsoft Exchange improve their documentation."
"The pricing could be better, and it could have an easier implementation."
 

Pricing and Cost Advice

"KerioConnect has a first-time cost and yearly subscription. It is not expensive."
"The pricing is about $3 per mailbox per month."
"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 product pricing is reasonable if you utilize its full suite of features."
"Microsoft's licensing structure is too complex, but its prices are affordable, though not cheap."
"The price of Microsoft Exchange could improve. In Egypt, the price keeps increasing."
"Its price is fair."
"This solution is expensive."
"I have Outlook 365 Professional, and Exchange comes in the bundle with other solutions, such as Word and OneDrive. I pay for the use of the bundle monthly and I can imagine if you are a company with many licenses the pricing model would be a lot different."
"There is an annual cost to use Microsoft Exchange, and the price could be less expensive."
"It's working very well. There is no problem, but the price is not the best."
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Top Industries

By visitors reading reviews
Comms Service Provider
13%
Manufacturing Company
10%
Computer Software Company
8%
Retailer
8%
Manufacturing Company
10%
Computer Software Company
10%
Comms Service Provider
8%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business10
Midsize Enterprise2
By reviewers
Company SizeCount
Small Business41
Midsize Enterprise28
Large Enterprise35
 

Questions from the Community

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.
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.
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 ...
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 Microsoft Exchange?
The initial setup was straightforward and fast.
What is your experience regarding pricing and costs for Microsoft Exchange?
I am aware of pricing aspects, and I would say it is affordable for what it is.
 

Also Known As

No data available
Exchange, MS Exchange
 

Overview

 

Sample Customers

Southern Tier Brewing Company, Innotta, Baustoff + Metall, Hamifleurs, Chanson TV, Ryman Stationery
Paderborn-Lippstadt Airport, Scitec Nutrition, British Airways, InnoGames, Osteology Foundation, Franz Haniel & Cie. GmbH, NTC Contracting
Find out what your peers are saying about KerioConnect vs. Microsoft Exchange and other solutions. Updated: March 2026.
884,797 professionals have used our research since 2012.