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Libraesva Email Security vs Microsoft Defender for Office 365 comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 3, 2024

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

Libraesva Email Security
Ranking in Email Security
31st
Average Rating
8.6
Reviews Sentiment
7.9
Number of Reviews
2
Ranking in other categories
No ranking in other categories
Microsoft Defender for Offi...
Ranking in Email Security
1st
Average Rating
8.4
Reviews Sentiment
6.8
Number of Reviews
60
Ranking in other categories
Email Archiving (1st), Advanced Threat Protection (ATP) (2nd), Microsoft Security Suite (10th), Secure Email Gateway (SEG) (1st)
 

Mindshare comparison

As of February 2026, in the Email Security category, the mindshare of Libraesva Email Security is 0.5%, down from 0.5% compared to the previous year. The mindshare of Microsoft Defender for Office 365 is 9.1%, down from 13.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security Market Share Distribution
ProductMarket Share (%)
Microsoft Defender for Office 3659.1%
Libraesva Email Security0.5%
Other90.4%
Email Security
 

Featured Reviews

Phakedi Mphela - PeerSpot reviewer
IT Project Manager at Brilliant telecommunications
Helps us reduce phishing email attacks and has a user-friendly dashboard
It is the best product. It helps reduce spam and phishing attacks. It has user-friendly Real-Time Phishing Mitigation features for environmental protection. It primarily focuses on verifying security features like SPS (Sender Policy Framework) and Smart DKIM (DomainKeys Identified Mail). The DLP feature ensures that only emails meeting the required security standards pass through the secure gateway. The configuration and management of the policies and settings are easy to navigate. I rate it an eight out of ten.
Emeka Ndulu - PeerSpot reviewer
Cloud Solutions Architect at a tech services company with 201-500 employees
Improves threat visibility and response while reducing manual tasks and training users against phishing
I appreciate the attack simulation feature whereby I get to train users and educate them on how to identify phishing emails and spam emails, as well as the anti-spam protection. It gives me visibility into my threat environment and threat landscape to ensure that I am one step ahead of any likelihood of threats within my environment. I get to detect it and respond, so the threat intelligence is very effective. Microsoft security solutions save my time. It saves money because once I protect my environment, I don't lose money. It has decreased my detection time and my time to respond.

Quotes from Members

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

Pros

"It helps reduce spam and phishing attacks."
"The solution is easier to manage than FortiMail. You can implement policies easily."
"Defender helps us prioritize threats across our organization."
"The feature I like the most about Microsoft Defender for Office 365 is that it typically runs in the background—you do not know it is there until you need to access it."
"The product's scalability is good."
"Defender enables us to secure all 365-related activity from a single place. It gives us visibility into everything happening in Outlook, protecting us against phishing and other email-based threats. Defender helps us detect any suspicious behaviors."
"Threat Explorer is an invaluable tool for me, and it plays a crucial role in helping me discern the origins of various email campaigns, pinpointing where they emanate from, and identifying the individuals within our organization who are affected."
"The solution is very easy to use. All you have to do is to assign the license to the end-user and it's done. The customer will only have the feature activated, and the solution will monitor the emails to determine if they are a threat or not."
"I like its investigation capabilities, as that is what is most important to me. It is fairly simple with a user-friendly interface."
"The most valuable feature of Microsoft Defender for Office 365 is data backups that we can provide through ticket requests."
 

Cons

"Its pricing could be affordable."
"The solution does not always effectively identify zero day spam and phishing, but once reported the correction occurs very quickly."
"Specifically, within Microsoft Defender for Office 365, I want it to improve the DLP capabilities."
"Microsoft wants its well-paying customers to finish testing some of its half-baked products, find bugs, and report bugs back to Microsoft's team, which is a little frustrating for those who have to manage it and roll it up to thousands of people across the organization."
"In the areas of improvement for Microsoft Defender for Office 365, the console is the biggest challenge for me."
"There needs to be an improvement in integrating the product to work across multiple operating systems, and to have better support for non-Microsoft file types."
"Microsoft Defender for Office 365 must improve the overall management style, including the GUI. It also needs to change the filters so that it is easy to whitelist and blacklist data."
"I'd like some additional features any product can give me to protect our environment in a better way."
"They have moved features from one console to another. Things have been moved around in the interface and it takes me time to find where certain features are."
"The product must provide better malware detection."
 

Pricing and Cost Advice

"Email Security Gateway's pricing is good."
"The solution could be better by simplifying the business model of their licensing. It was hard to figure out how to get the licensing done for the environment, initially."
"The pricing is normal. Considering its popularity, it's not overpriced."
"Microsoft Defender is expensive. I typically recommend it only if clients have the budget. Otherwise, I would suggest an alternative."
"The product is expensive."
"The product is very expensive."
"It is much more expensive than using another solution because we have had to include some options and upgrade our license."
"The license is expensive because the cost is based on the number of users."
"From the pricing point of view, like any other product in the market, there is scope for negotiation."
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Top Industries

By visitors reading reviews
Comms Service Provider
21%
Manufacturing Company
15%
Computer Software Company
10%
Wholesaler/Distributor
5%
Computer Software Company
13%
Financial Services Firm
8%
Manufacturing Company
8%
Comms Service Provider
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business23
Midsize Enterprise10
Large Enterprise31
 

Questions from the Community

What needs improvement with Email Security Gateway?
The platform is expensive. Its pricing could be affordable.
What advice do you have for others considering Email Security Gateway?
It is the best product. It helps reduce spam and phishing attacks. It has user-friendly Real-Time Phishing Mitigation features for environmental protection. It primarily focuses on verifying securi...
What needs improvement with Microsoft Defender for Office 365?
The inbuilt analysis of false positives can be faster. It's not slow, but it can be faster.
What is your primary use case for Microsoft Defender for Office 365?
My use case for Microsoft Defender for Office 365 is for email protection, safe links, protection of links, documents, protecting my documents, and protecting attachments. I also use it to conduct ...
 

Also Known As

No data available
MS Defender for Office 365
 

Overview

 

Sample Customers

Information Not Available
Microsoft Defender for Office 365 is trusted by companies such as Ithaca College.
Find out what your peers are saying about Libraesva Email Security vs. Microsoft Defender for Office 365 and other solutions. Updated: February 2026.
881,665 professionals have used our research since 2012.