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KerioConnect Reviews

Vendor: GFI
3.6 out of 5
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What is KerioConnect?

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.

Get the KerioConnect Buyer's Guide and find out what your peers are saying about KerioConnect, Google Workspace, Mimecast Email and Collaboration Threat Protection and more!
KerioConnect is the #7 ranked solution in top Email Archiving solutions and #9 ranked solution in top Email Applications. PeerSpot users give KerioConnect an average rating of 7.2 out of 10. KerioConnect is most commonly compared to Google Workspace: KerioConnect vs Google Workspace. KerioConnect is popular among the small business segment, accounting for 47% of users researching this solution on PeerSpot. The top industry researching this solution are professionals from a comms service provider, accounting for 14% of all views.
Buyer's Guide
KerioConnect
May 2026
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Helped 893,221 peers since 2012

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KerioConnect mindshare

Product category:
Email Archiving
As of May 2026, the mindshare of KerioConnect in the Email Archiving category stands at 2.7%, up from 0.9% compared to the previous year, according to calculations based on PeerSpot user engagement data.
Email Archiving Mindshare Distribution
ProductMindshare (%)
KerioConnect2.7%
Mimecast Email and Collaboration Threat Protection15.4%
Microsoft Defender for Office 36515.1%
Other66.8%
Email Archiving

PeerResearch reports based on KerioConnect reviews

TypeTitleDate
CategoryEmail ArchivingMay 9, 2026Download
ProductReviews, tips, and advice from real usersMay 9, 2026Download
ComparisonKerioConnect vs Microsoft Defender for Office 365May 9, 2026Download
ComparisonKerioConnect vs Mimecast Email and Collaboration Threat ProtectionMay 9, 2026Download
ComparisonKerioConnect vs Barracuda Email ProtectionMay 9, 2026Download
Suggested products
TitleRatingMindshareRecommending
Google Workspace4.1N/A95%106 interviewsAdd to research
Mimecast Email and Collaboration Threat Protection4.015.4%92%39 interviewsAdd to research
 
 
Key learnings from peers

Valuable Features

Valuable features of KerioConnect include ease of use, flexible platform compatibility, excellent pricing, and strong security capabilities such as antivirus and anti-spam. It supports ActiveSync and integrates with Microsoft Office, App Store, and Outlook. Users appreciate its simple user interface, secure on-premise installation, multiple domain management, log analysis, and low resource requirements. KerioConnect facilitates straightforward setup and maintenance, making it a stable and robust mail server, with privacy control and useful subscription services.
  • "We have contacted technical support a handful of times and received some assistance."
  • "Kerio Connect is secure, flexible, and easy to control from the user interface."
  • "It's relatively simple to use."

Room for Improvement

KerioConnect could benefit from enhanced support, quicker interface loading times, cloud availability, and improved security on non-Linux systems. Users find the software hard to use and install, lacking seamless integration with Outlook and CRM systems. Documentation could be more user-friendly, and there are stability concerns. Integration with Google services and AI features is missing, and KerioConnect needs better adaptation for larger organizations and enhanced compatibility with Microsoft Teams and 365 applications.
  • "I don't particularly like this solution. I would not recommend this solution to others."
  • "The solution could improve the redundancy because we only have one copy of the Kerio Connect server on our hardware."
  • "This is just a cost, it's not something that's driving our business forward; it's just foundational."

Pricing

KerioConnect's pricing is approximately $3 per mailbox monthly and is considered more affordable compared to Google, Microsoft, or Zoho. It offers clear, competitive pricing with both first-time costs and yearly subscriptions. While some users find the annual cost between $2,000 to $3,000 expensive, many appreciate its simplicity and cost-effectiveness relative to alternatives like Office 365. Users benefit from a monitoring system for subscriptions, helping with renewals efficiently.
  • "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."
  • "The price of Kerio Connect is better when comparing it to others solutions."

Popular Use Cases

KerioConnect is primarily used by small and medium-sized businesses as an alternative to Exchange. It's implemented as a mail server for managing emails and facilitating collaboration through calendaring and contact integrations. Organizations utilize it on Linux and Windows environments for on-premises email hosting, particularly for warehouse distribution and retail sectors. Some users connect it with Outlook, and it serves both corporate and client domains for email and collaboration services.

Service and Support

KerioConnect's customer service receives praise for quick, knowledgeable responses. Users report fast assistance upon creating a ticket. Their technical staff is skilled at addressing specific queries, though assistance for broader issues might require more effort. Support begins with resellers, followed by distributors, then GFI's AI or direct communication. Users appreciate reliable service, noting rapid replies to website tickets. Some indicate server crashes may require significant time to resolve, especially without clear documentation.

Deployment

KerioConnect's initial setup is often seen as straightforward, especially by those with IT knowledge. Installation on Linux or Windows takes minutes, although some complexity exists if detailed server or email protocol settings are required. Maintenance varies based on team size. Flexibility surpasses Google for those familiar with technologies like SMTP and firewall configurations. Admins find configuration easy with minimal experience, but comprehensive familiarity improves efficiency. Deployment can include installing on a server, setting domains, users, and filters.

Scalability

KerioConnect scales well, accommodating up to 10,000 users. It fits small to medium companies, handling multiple domains and supporting clustering. Scalability depends on infrastructure like I/O and drive capacity. Users report robust performance but note limitations with large volumes of data and integration with external systems. Some organizations prefer cloud versions for enhanced scalability. It works efficiently with sufficient resources, offering excellent security and privacy for its customer base.

Stability

KerioConnect is recognized for its stability and reliability. Users indicate it operates smoothly without bugs, crashes, or glitches as long as systems are stable. It is stable on both Windows Server 2012 and Linux platforms, with features like anti-virus and two-factor authentication enhancing security. Some users mention stability remains high with minimal maintenance, though functionality may be limited. Usage of a strong password is advised to maintain stability.
These insights are based on the in-depth reviews provided by peers to help you make a better buying decision.
Download our KerioConnect Buyer's Guide for additional reliable information.

Review data by company size

By reviewers
Company SizeCount
Small Business7
Midsize Enterprise1
By reviewers
By visitors reading reviews
Company SizeCount
Small Business65
Midsize Enterprise38
Large Enterprise34
By visitors reading reviews

Top industries

By visitors reading reviews
Comms Service Provider
14%
Manufacturing Company
9%
Computer Software Company
7%
Performing Arts
7%
Retailer
7%
Construction Company
6%
Outsourcing Company
5%
University
5%
Financial Services Firm
4%
Healthcare Company
4%
Energy/Utilities Company
4%
Government
4%
Non Profit
4%
Recreational Facilities/Services Company
4%
Real Estate/Law Firm
4%
Wholesaler/Distributor
2%
Media Company
2%
Marketing Services Firm
1%
Logistics Company
1%
Consumer Goods Company
1%
Renewables & Environment Company
1%
Educational Organization
1%
Hospitality Company
1%
Transportation Company
1%
Leisure / Travel Company
1%
Aerospace/Defense Firm
1%
Legal Firm
1%

Compare KerioConnect with alternative products

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Learn more about KerioConnect

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.

KerioConnect customers

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

Related questions

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When evaluating Email Archiving, what aspect do you think is the most important to look for?
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Product Categories

Product Categories
Email Archiving
Email Applications

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KerioConnect Reviews Summary
Author infoRatingReview Summary
Senior Systems Tech/Admin at Samco Software Inc.5.0I've used KerioConnect for over 15 years; it's stable, easy to set up, and ideal for small to medium businesses, offering solid features like VPN and spam filtering, though lacking full integration like Gmail or Office 365.
Senior Systems Tech/Admin at Samco Software Inc.5.0We use KerioConnect as our mail server for multiple domains and clients. It's easy to maintain and manage, with robust security features such as anti-spam and antivirus. Creating domains and performing backups and restores is straightforward.
Information Technology Specialista at REMING CONSULT a.s.4.0I use KerioConnect for emails, calendars, and collaboration tools. It integrates with Outlook and Apple devices, offering good spam filtering and antivirus. While suitable for smaller organizations, larger ones need better server capacity and integration with MS Teams.
Lead Hand - Print Department at a marketing services firm with 11-50 employees4.5I find KerioConnect to be a secure and private mail server option for on-premise installations, offering control over email access and flexibility. However, it lacks integration with services like Google Docs and Google Calendar, but remains reliable and cost-effective.
Senior Technician at Computers At Work4.5I use Kerio Connect for email applications due to its ActiveSync support, simplicity, and stability. Though native Outlook integration could improve, it outperformed Microsoft Exchange with its ease of maintenance, affordability, and minimal system resource requirements.
Vice President at a manufacturing company with 51-200 employees2.5I find this corporate email solution simple and stable, but it's basic, lacks CRM integration, and user documentation is terrible. It's slow, crashes easily, and recovery is difficult. The user experience is neglected, rating 5/10.
IT at a manufacturing company with 11-50 employees3.0We use KerioConnect as a mail server integrated with Outlook for calendaring tasks. However, it lacks smooth integration with Microsoft 365 applications, prompting us to consider switching to Microsoft Exchange for improved workflow efficiency.
Lead Hand - Print Department at a marketing services firm with 11-50 employees4.5I highly rate Kerio Connect for its security, flexibility, and ease of use, appreciating its stability and support. My main concern is the lack of redundancy and a native cloud version for better scalability.