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IceWarp vs KerioConnect 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

IceWarp
Ranking in Email Applications
10th
Average Rating
8.4
Reviews Sentiment
7.0
Number of Reviews
17
Ranking in other categories
No ranking in other categories
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)
 

Mindshare comparison

As of April 2026, in the Email Applications category, the mindshare of IceWarp is 4.8%, down from 5.4% compared to the previous year. The mindshare of KerioConnect is 3.9%, down from 4.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Applications Mindshare Distribution
ProductMindshare (%)
KerioConnect3.9%
IceWarp4.8%
Other91.3%
Email Applications
 

Featured Reviews

AvinashLotke - PeerSpot reviewer
Delivery Head at Team Computers
Useful for collaboration and storage but improvement is needed in API integration
The solution has traditional SSL integration, SAML, and Federation Services. In its latest version, it added SAML integration. However, it needs to work on API integration, especially for dashboards or integration with SAP for log and data system management. It doesn't yet have the kind of API that Google and Microsoft provide for synchronizing users with Active Directory. I think IceWarp needs to improve in a few areas. They have two types of admin consoles - a web-based one and a remote one. I'd like to see these combined into a single web-based admin console. The log reading and information system also needs improvement. The current way of showing incoming and outgoing logs isn't very clear. For new users, it's hard to understand these logs, especially compared to Office 365 and other systems with easier-to-read logs. They should also add an export option to get all logs with a single click whenever we need them.
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.

Quotes from Members

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

Pros

"It has great communication capabilities for team chatting and web conferences."
"The solution has a very good log-in to the UI when compared to other solutions."
"Its price is the most valuable. It is definitely one of the lowest price solutions."
"The solution has a very good log-in to the UI when compared to other solutions."
"The most valuable feature of IceWarp is the chat rooms and file-sharing, they are useful. It is convenient that everything is in one place. You can easily share and collaborate documents, making the program's unity a significant advantage."
"An effective, functional, very good tool for controlling resources."
"With all of the features that are available for the users included with the license, it is reasonably priced."
"The solution's voice services work well for our company."
"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."
"Kerio Connect is secure, flexible, and easy to control from the user interface."
"It's relatively simple to use."
"This solution is our SMB alternative to Exchange, installed for more than forty SMB customers in a Linux environment with all of the collaboration features."
"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."
"Backing up and maintaining it is straightforward compared to Microsoft Exchange, making it administrator-friendly."
"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."
 

Cons

"I would like to have a trial for mobile applications and more documentation similar to Google Drive with mobile applications."
"Support should be improved. Most of the time, the queries are not resolved within the SLA."
"The Exchange compatibility mode is rather limited."
"Our customers sometimes have problems receiving mail."
"The solution should improve the mailing list feature. Google has a similar feature where you can automate sending files to different people in a sequence, but that feature is no longer available in the current version of IceWarp. Other features may also have been removed in the current version."
"There are some feature improvements possible the way we use it as a hosting provider, but for most we currently have workarounds."
"The solution has traditional SSL integration, SAML, and Federation Services. In its latest version, it added SAML integration. However, it needs to work on API integration, especially for dashboards or integration with SAP for log and data system management. It doesn't yet have the kind of API that Google and Microsoft provide for synchronizing users with Active Directory."
"It is difficult to disable user rights on the console so some users accidentally delete their documents or user details."
"You cannot integrate with other services like Google Docs, Google Assistant, Google Calendar, etc."
"This is just a cost, it's not something that's driving our business forward; it's just foundational."
"The search and archiving documentation capabilities need to be stronger."
"Most of our clients use Outlook and Kerio Connect. Occasionally, Kerio can be a bit slow."
"Most of our clients use Outlook and Kerio Connect. Occasionally, Kerio can be a bit slow."
"We cannot compete with them because they're fully integrated with their applications."
"I would like to see better support from their support team."
"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."
 

Pricing and Cost Advice

"Price-wise, it's a cheaper solution, without a doubt. Price is the reason we are still using the tool."
"I don't see any challenges for the Indian market. For example, 1 GB is available for around 399 INR, and 2 GB for 499 INR. They offer a range of plans, from basic to professional and enterprise, with multiple features. IceWarp's aggressive pricing is competitive compared to other market solutions like Zoho and Microsoft. One significant advantage is that IceWarp does not impose user capping like Google and Microsoft, which allows for substantial cost savings and flexibility in user conversion."
"It is definitely one of the lowest price solutions."
"The solution is priced well."
"Our licensing is on a yearly basis. There were no additional costs."
"I would rate the pricing and eight out of ten."
"Pricing and licensing is very competitive and in some cases, cheap."
"There are various licensing plans available based on geographic zone."
"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."
"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."
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Manufacturing Company
13%
Comms Service Provider
10%
Financial Services Firm
7%
Comms Service Provider
13%
Manufacturing Company
9%
Computer Software Company
8%
Performing Arts
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business12
Midsize Enterprise4
Large Enterprise5
By reviewers
Company SizeCount
Small Business10
Midsize Enterprise2
 

Questions from the Community

What is your experience regarding pricing and costs for IceWarp?
IceWarp was very cost-effective, offering services at a significantly lower cost than Google, which was appealing for our organization.
What needs improvement with IceWarp?
The solution needs improvements in security, particularly regarding document management. Users currently have the rights to delete smart documents, which poses a challenge for administrators. A mor...
What is your primary use case for IceWarp?
We managed approximately one thousand user accounts with IceWarp for company communications. We utilized features such as smart attachments and document solutions. Our setup was primarily on-premis...
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 ...
 

Overview

 

Sample Customers

Marriott, Toyota, Sony, Wendy's, Canon
Southern Tier Brewing Company, Innotta, Baustoff + Metall, Hamifleurs, Chanson TV, Ryman Stationery
Find out what your peers are saying about IceWarp vs. KerioConnect and other solutions. Updated: April 2026.
886,468 professionals have used our research since 2012.