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KerioConnect vs Zoho Mail 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 (6th)
Zoho Mail
Ranking in Email Applications
5th
Average Rating
7.8
Reviews Sentiment
5.7
Number of Reviews
17
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of January 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 Zoho Mail is 5.3%, up from 4.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Applications Market Share Distribution
ProductMarket Share (%)
Zoho Mail5.3%
KerioConnect4.1%
Other90.6%
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.
Antony Munyao Benjamin - PeerSpot reviewer
Customer Experience Consultant at Zoho
Has required technical improvements to better support advanced email feedback and user behavior tracking
Using Zoho Mail is quite easy. Users are able to track if the recipient has received, opened, or clicked on the email, thanks to a very good tracking system, and they can create large campaigns using the unlimited features of the email. The integration with Zoho Projects is a bit technical, as it's part of the CRM with specific routine tasks for projects. Efficiency-wise, it has been great in bringing teams closer together so that every project member can critique the progress of assignments. However, there is a need for improvement in communication style from one module to another. The main benefits that Zoho Mail brings include the ability to send large and secure mails. It integrates with Google clients, ensuring a high level of security and reduced spam. I have utilized it effectively, and clients trust emails from Zoho Mail because of its reputation as a reliable CRM software company.

Quotes from Members

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

Pros

"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."
"The most valuable features are its ease of use, excellent pricing, and it is platform agnostic."
"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."
"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."
"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 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."
"The user interface is good."
"Zoho Mail offers a strong platform for mailing and CRM functionalities, allowing users to build effective email campaign trails and offering security for email communications."
"Zoho Mail is a stable product."
"Their experience with Zoho Mail has been positive, as customers haven't complained about anything."
"The solution has more security compared to other products. Zoho Mail comes with TLS and SSL. It has email-sharing features. It is an advanced product."
"We can create email accounts for our customers."
"Zoho gives you a set amount of free users, so you can use it until you reach the limit and see if it's something you want to adopt. I tried it and stuck with it. Since then, I've seen a lot of improvement. I already think it's top-notch, but I believe it will become one of the best in the world."
"It also offers the search functionalities. For end users, the search is quite easy to use. There are a few tabs to select to find exactly what you're looking for. It's pretty simple. As long as the data is available, you can use filters like from whom, to whom, subject, attachment, and even use advanced settings. It's pretty nice."
"Zoho Mail brings a positive return on investment as it leverages its CRM capabilities, which facilitates quick conversions due to the trusted brand image."
 

Cons

"It could be simpler to use and install, but I still wouldn't use it because there isn't a compelling use case."
"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."
"KerioConnect continues to improve with regular updates throughout the year. They must be added to the roadmap, which requires approval."
"I would like to see better support from their support team."
"The search and archiving documentation capabilities need to be stronger."
"You cannot integrate with other services like Google Docs, Google Assistant, Google Calendar, etc."
"Having a native Outlook map integration would make Kerio Connect better."
"We cannot compete with them because they're fully integrated with their applications."
"The solution’s stability could be improved."
"The initial setup of Zoho Mail can take some time because we have 30 to 35 users and we need to register each one. This can take one or two days to complete. The process could be better for administrators to register their users. If the setup interface was better in explaining the process it would be helpful to become more user-friendly."
"The integration with Zoho Projects is a bit technical, as it's part of the CRM with specific routine tasks for projects. Efficiency-wise, it has been great in bringing teams closer together so that every project member can critique the progress of assignments. However, there is a need for improvement in communication style from one module to another."
"The solution doesn't need to be improved."
"They have issues when they are rolling out updates"
"The solution's meeting plans and online virtual activity task list could be improved and made more seamless."
"The interface isn't quite good. Everything looks a little low-quality."
"They could increase the available space which is currently 5 GB. Gmail provides 15 GB of storage space, which would be more useful."
 

Pricing and Cost Advice

"KerioConnect has a first-time cost and yearly subscription. It is not expensive."
"The price of Kerio Connect is better when comparing it to others solutions."
"The pricing is about $3 per mailbox per month."
"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."
"If you have ten users, for Google, you'll pay $100. With Zoho Mail, you'll only pay $30 to $40."
"The solution’s pricing is very reasonable."
"One of the reasons people use Zoho in Nigeria is because we can pay for it in Naira. It's very affordable already. For example, we can get Zoho Mail for somewhere between 1000 naira per user, which is less than one dollar. In my opinion, it's very affordable."
"Zoho One has all 50 applications in it, and Zoho Mail is part of it. Zoho One is about 35 GBP per person per month. It includes Zoho Projects, Zoho Mail, Zoho CRM, and everything else."
"The solution is more affordable compared to other products. It is cheap."
"The solution is not costly."
"There is no license required to use Zoho Mail."
"Zoho Mail is more cost-efficient than its competitors."
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Top Industries

By visitors reading reviews
Comms Service Provider
13%
Computer Software Company
11%
Manufacturing Company
9%
Performing Arts
8%
Comms Service Provider
16%
Computer Software Company
11%
Manufacturing Company
8%
Retailer
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business10
Midsize Enterprise2
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise1
Large Enterprise3
 

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 ...
What do you like most about Zoho Mail?
It also offers the search functionalities. For end users, the search is quite easy to use. There are a few tabs to select to find exactly what you're looking for. It's pretty simple. As long as the...
What is your experience regarding pricing and costs for Zoho Mail?
I find the pricing to be reasonable but recognize it can vary based on corporate economic conditions. However, I suggest considering packages for freelancers or independent consultants.
What needs improvement with Zoho Mail?
🎯As a CX professional, I consider the new ZohoMail user interphase to be versatile, the ability to categorize mails from notifications and the inbuilt tools and features like calendly that is after...
 

Comparisons

 

Overview

 

Sample Customers

Southern Tier Brewing Company, Innotta, Baustoff + Metall, Hamifleurs, Chanson TV, Ryman Stationery
BBDO, HuffPost
Find out what your peers are saying about KerioConnect vs. Zoho Mail and other solutions. Updated: December 2025.
881,082 professionals have used our research since 2012.