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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
6.8
Reviews Sentiment
7.3
Number of Reviews
10
Ranking in other categories
Email Archiving (8th)
Zoho Mail
Ranking in Email Applications
6th
Average Rating
7.6
Reviews Sentiment
6.8
Number of Reviews
13
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of June 2025, in the Email Applications category, the mindshare of KerioConnect is 4.8%, up from 3.9% compared to the previous year. The mindshare of Zoho Mail is 5.1%, up from 2.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Applications
 

Featured Reviews

David Bloomer - PeerSpot reviewer
Lightweight, simple, and robust; easy to maintain and doesn't require a lot of system resources to run
Kerio Connect does as advertised, so there are no real issues with the product itself. It's developed regularly, so there are constant updates. Possibly, the support and development have lessened since they've sold the company, but as far as the product itself is concerned, there isn't anything that I would suggest needs improvement. If I'm being picky, Kerio Connect uses a proprietary, mappy atom for Outlook, and it would be nice if they used a native mappy connection instead, but that's the only additional feature that I would like to see in its next release. If they have native Outlook map integration, that would be great, but other than that, it's got all the functions that I think a mail server should have.
AvinashLotke - PeerSpot reviewer
Offers good security with effective spam filtering but has update issues
Zoho is not just a traditional software-based company. It offers a wide range of APIs and other integration tools, including a CRM tool and various other products, so integration is not limited. Zoho has operations management and developers, making integration feasible with any system. Zoho is a cloud-based solution, meaning maintenance is managed by their system. They don't provide access to unauthorized persons. Zoho handles maintenance. Traditionally, we haven't recommended Zoho as extensively because we prefer systems we have thoroughly tested and can confidently endorse. We've deployed Zoho a few times with mixed success. In comparison, we've had more success with Google deployments, with higher implementation rates and ease, offering better revenue opportunities. Based on requirements, I might recommend Zoho, but for higher needs or better collaboration, I'd suggest Google, possibly combined with iSoft. If there is no other support, Google remains a strong recommendation. Overall, considering support, I rate the solution a six out of ten.

Quotes from Members

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

Pros

"It's relatively simple to use."
"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 use the solution as a mail server. It connects with Outlook and is used for calendaring and similar tasks."
"We have contacted technical support a handful of times and received some assistance."
"The most valuable features are security and privacy because you installed it on your server, within your company premises, not in the cloud."
"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."
"The most valuable features are its ease of use, excellent pricing, and it is platform agnostic."
"The user interface is good."
"The most valuable features of Zoho Mail are its security, integration with cloud storage, and wide range of features available. It integrates well with Outlook and mobile devices."
"It uses an alert system and other monitoring tools."
"Zoho Mail is a cost-effective solution."
"Their experience with Zoho Mail has been positive, as customers haven't complained about anything."
"The interconnectivity between these applications makes it particularly useful."
"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."
"I like Zoho Mail's user interface."
"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."
 

Cons

"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."
"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"
"It could be simpler to use and install, but I still wouldn't use it because there isn't a compelling use case."
"The search and archiving documentation capabilities need to be stronger."
"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."
"KerioConnect continues to improve with regular updates throughout the year. They must be added to the roadmap, which requires approval."
"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."
"They could increase the available space which is currently 5 GB. Gmail provides 15 GB of storage space, which would be more useful."
"For the admin side of Zoho Mail, they need to add features for organizing users in organizational units."
"They have issues when they are rolling out updates"
"Zoho Mail needs to improve its integration because direct integration is not possible with many applications."
"The solution's meeting plans and online virtual activity task list could be improved and made more seamless."
"Zoho Mail is not as good as G Suite, which has integrated calendars."
"The interface isn't quite good. Everything looks a little low-quality."
"The solution doesn't need to be improved."
 

Pricing and Cost Advice

"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 pricing is about $3 per mailbox per month."
"KerioConnect has a first-time cost and yearly subscription. It is not expensive."
"If you have ten users, for Google, you'll pay $100. With Zoho Mail, you'll only pay $30 to $40."
"The solution is not costly."
"The solution is more affordable compared to other products. It is cheap."
"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 Mail is more cost-efficient than its competitors."
"The solution’s pricing is very reasonable."
"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."
"There is no license required to use Zoho Mail."
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Comms Service Provider
13%
Manufacturing Company
7%
Real Estate/Law Firm
7%
Computer Software Company
17%
Retailer
12%
Comms Service Provider
12%
Manufacturing Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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?
KerioConnect has a first-time cost and yearly subscription. It is not expensive.
What needs improvement with KerioConnect?
KerioConnect continues to improve with regular updates throughout the year. They must be added to the roadmap, which requires approval. In larger organizations, the server's capabilities and the da...
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?
Zoho Mail is more cost-efficient than its competitors.
What needs improvement with Zoho Mail?
The solution's meeting plans and online virtual activity task list could be improved and made more seamless.
 

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: June 2025.
859,129 professionals have used our research since 2012.