KerioConnect vs Mimecast Email and Collaboration Threat Protection comparison

KerioConnect vs. Mimecast Email and Collaboration Threat Protection

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Helped 885,264 peers since 2012

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 Archiving

7th

Average Rating

7.2

Reviews Sentiment

7.3

Number of Reviews

Ranking in other categories

Email Applications (9th)

Mimecast Email and Collabor...

Ranking in Email Archiving

2nd

Average Rating

8.0

Reviews Sentiment

5.9

Number of Reviews

Ranking in other categories

Secure Web Gateways (SWG) (19th), Office 365 Protection (2nd), Secure Email Gateway (SEG) (3rd)

Mindshare comparison

As of March 2026, in the Email Archiving category, the mindshare of KerioConnect is 2.2%, up from 0.8% compared to the previous year. The mindshare of Mimecast Email and Collaboration Threat Protection is 18.7%, down from 25.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Email Archiving Mindshare Distribution
Product	Mindshare (%)
Mimecast Email and Collaboration Threat Protection	18.7%
KerioConnect	2.2%
Other	79.1%

Email Archiving

Featured Reviews

Marcelino Mongcal

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.

Read full review

Test Logix

Email Security Engineer at Logic Infosecurity

Experience high detection and user-friendly policies with reliable email security implementation

The system is not user-friendly because you have to create policies that are mapped in a dictionary. As an IT engineer, I understand how it works, but explaining it to another IT person can be difficult. Having more user-friendly dashboards would improve the work experience. In Mimecast Email Security, checking policies in the dictionary or gateway is very complicated, and not everyone understands this process. If you examine the Check Point portal, it's user-friendly with easily accessible tabs that anyone can explore. With Mimecast Email Security, making changes might impact existing mailboxes. The portal is complicated compared to Check Point's user-friendly interface.

Read full review

Quotes from Members

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

Pros

"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."

"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."

"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 user interface is good."

"We have contacted technical support a handful of times and received some assistance."

"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."

"The most valuable features are its ease of use, excellent pricing, and it is platform agnostic."

"It's relatively simple to use."

More KerioConnect pros

"The product is good. To date, we have not faced any challenges."

"We're now certain business-critical mail is perfectly protected in multiple ways."

"Mimecast certainly helped my customers reduce phishing emails."

"The setup was easy."

"We like the content filtering and secure messaging features."

"If I had to mention one or two things that bring the biggest benefit, I would say the security of the emails and dealing with everything."

"The security on offer is very good."

"Mimecast is pretty good, even if you're on Office 365."

More Mimecast Email and Collaboration Threat Protection pros

Cons

"This is just a cost, it's not something that's driving our business forward; it's just foundational."

"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. 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."

"Having a native Outlook map integration would make Kerio Connect better."

"I would like to see better support from their support team."

"It could be simpler to use and install, but I still wouldn't use it because there isn't a compelling use case."

"You cannot integrate with other services like Google Docs, Google Assistant, Google Calendar, etc."

"I don't particularly like this solution. I would not recommend this solution to others."

More KerioConnect cons

"The installation is not so straightforward."

"As for areas for improvement within Mimecast Web Security, I believe there is quite a lot that can be improved."

"The solution is complex and not easy to use."

"It was not a good experience due to the fact that our main infrastructure had a problem for that entire time."

"The filtering needs more flexibility."

"I did have a problem with Mimecast. That is why I was looking for an alternative solution because their sender IP address gets poorly rated by Microsoft."

"The price could be better, it should be reduced."

"The detection rates are an area for improvement."

More Mimecast Email and Collaboration Threat Protection cons

Pricing and Cost Advice

"The pricing is about $3 per mailbox per month."

"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."

"The product price is moderate. I rate the pricing a five out of ten."

"It is a bit expensive."

"On a scale of one to ten, where one is cheap, and ten is expensive, I rate the pricing a ten."

"Two subscription options are currently offered: monthly and yearly. My suggestion is to opt for the yearly subscription as it can give some discount. The pricing isn't high as other cloud solutions are pricier than Microsoft's offerings."

"I'm always going to say the price needs to be lower, but it's reasonable."

"It's an expensive solution."

"The solution is expensive."

"The customers can select the license packages as per their requirements."

More Mimecast Email and Collaboration Threat Protection pricing and cost advice

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Top Industries

By visitors reading reviews

Comms Service Provider

13%

Manufacturing Company

10%

Computer Software Company

Retailer

Computer Software Company

12%

Financial Services Firm

Manufacturing Company

Comms Service Provider

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	10
Midsize Enterprise	2

By reviewers
Company Size	Count
Small Business	19
Midsize Enterprise	11
Large Enterprise	13

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 Mimecast Email Security with Targeted Threat Protection?

The interface of this solution is very easy to navigate and user-friendly. There is no delivery in email and other communications, making it reliable. The configuration is relatively easy.

What is your experience regarding pricing and costs for Mimecast Email Security with Targeted Threat Protection?

Do you know anything about the pricing and cost of the Mimecast Email Security?

What needs improvement with Mimecast Email Security with Targeted Threat Protection?

There is room for improvement since new threats are emerging. Considering the availability of new features would be worthwhile. Mimecast Email Security is somewhat expensive compared to the competi...

Microsoft Exchange vs KerioConnect

Comparisons

Compared 32% of the time

Zimbra Collaboration vs KerioConnect

Compared 15% of the time

IceWarp vs KerioConnect

Compared 9% of the time

Microsoft Exchange Online vs KerioConnect

Compared 7% of the time

Zoho Mail vs KerioConnect

Compared 3% of the time

More KerioConnect Competitors

Check Point Harmony Email & Collaboration vs Mimecast Email and Collaboration Threat Protection

Compared 19% of the time

Proofpoint Email Protection vs Mimecast Email and Collaboration Threat Protection

Compared 10% of the time

Microsoft Defender for Office 365 vs Mimecast Email and Collaboration Threat Protection

Compared 10% of the time

Barracuda Email Protection vs Mimecast Email and Collaboration Threat Protection

Compared 6% of the time

Abnormal Security vs Mimecast Email and Collaboration Threat Protection

Compared 5% of the time

More Mimecast Email and Collaboration Threat Protection Competitors

Product Reports

KerioConnect

Download KerioConnect product report

Mimecast Email and Collaboration Threat Protection

Download Mimecast Email and Collaboration Threat Protection product report

Mimecast Email and Collaboration Threat Protection report

Also Known As

No data available

Mimecast Email Security with Targeted Threat Protection, Mimecast Web Security, Mimecast Mailbox Continuity, Mimecast Advanced Email Security

Overview

Kerio Connect, a messaging and collaboration solution, meets the needs of small and mid-sized businesses while offering a robust feature lineup. Business users enjoy support for their favorite email client and easy web-based access. Kerio Connect is highly stable—so you can focus on business rather than unexpected downtime and recovery.

GFI

Mimecast Advanced Email Security offers advanced features like sandboxing, email archiving, and phishing protection. It's known for integration with Microsoft 365 and user-friendly admin management, making it a robust choice for secure communications.

Focused on safeguarding emails, Mimecast Advanced Email Security integrates seamlessly with Microsoft 365, providing features such as sandboxing, spam filtering, and email archiving. It delivers comprehensive protection against phishing, identity threats, and impersonation attempts. Administrators benefit from the ability to monitor external communications and customize configurations, enhancing email security. Users appreciate the intuitive admin console and responsive support team. Although it faces challenges in threat detection rates and administration complexity, its capabilities in email monitoring, spam filtering, and URL inspection remain valued by enterprises seeking reliable email security that supports compliance needs.

What key features should users explore?

Sandboxing: Analyzes attachments in a secure environment to detect threats.
Email Archiving: Provides secure long-term storage of emails for compliance.
Spam Filtering: Prevents unsolicited emails from clogging the inbox.
URL Inspection: Checks links in emails for malicious content.
Phishing Protection: Guards against deceptive tactics to protect sensitive data.

What benefits can impact ROI?

Regulatory Compliance: Facilitates adherence to standards such as HIPAA.
Integration: Enhances existing systems with seamless Microsoft 365 integration.
Support: Offers a responsive support team to resolve issues promptly.
Email Security: Improves threat prevention with effective spam and phishing protections.

Mimecast Advanced Email Security is implemented across industries to protect against email threats like phishing, spam, and malicious attachments. It serves as both a gateway and an archiving tool, supporting compliance in healthcare and finance by offering features like URL protection and data loss prevention. Enterprises leverage its capabilities to secure inbound and outbound communications effectively.

Mimecast

Sample Customers

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

Azizi Developments, Affinity Credit Union, Aftercare, Al Abbar Group

KerioConnect vs. Mimecast Email and Collaboration Threat Protection