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Libraesva Email Security vs Microsoft Exchange Online Protection (EOP) comparison

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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

Microsoft Defender for Offi...
Sponsored
Ranking in Email Security
1st
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
49
Ranking in other categories
Advanced Threat Protection (ATP) (1st), Microsoft Security Suite (11th)
Libraesva Email Security
Ranking in Email Security
30th
Average Rating
8.6
Reviews Sentiment
7.9
Number of Reviews
2
Ranking in other categories
No ranking in other categories
Microsoft Exchange Online P...
Ranking in Email Security
4th
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
38
Ranking in other categories
Anti-Malware Tools (8th)
 

Mindshare comparison

As of May 2025, in the Email Security category, the mindshare of Microsoft Defender for Office 365 is 12.9%, down from 18.3% compared to the previous year. The mindshare of Libraesva Email Security is 0.5%, up from 0.3% compared to the previous year. The mindshare of Microsoft Exchange Online Protection (EOP) is 6.7%, down from 9.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security
 

Featured Reviews

Tolu Omolaja - PeerSpot reviewer
Great URL scanning and attachment scanning, but I would like more proactive threat analysis
The two main features that prove most beneficial for us are URL scanning and attachment scanning. URL scanning involves an automatic scan of links and emails. When a user clicks on a link within an email, the system promptly checks the link's safety. If the link is deemed safe, access is granted automatically. However, if it is flagged as unsafe, we receive feedback and notification to caution us about the potentially harmful link. At this point, we are presented with the option to proceed or return. I have personally witnessed the system identify a few unsafe links, making this the primary advantage of using the solution. The second crucial aspect is the scanning of attachments. When an email containing an attachment arrives, we receive a notification of the new email, along with information that the attachment is being scanned for threats. This additional layer of security provides peace of mind for our organization. While Microsoft Defender for Office 365 offers numerous features, these two stand out as particularly impressive and valuable to us.
LucaTurano - PeerSpot reviewer
Handles security, malware and spam of email systems
We use Email Security Gateway on email systems for handling security, malware, and spam.  The solution is easier to manage than FortiMail. You can implement policies easily.  The solution does not always effectively identify zero day spam and phishing, but once reported the correction occurs very…
Nur Mohammad - PeerSpot reviewer
An effective email security solution that provides DLP, Safe Attachment, and Safe Links
If you want extensive email security, you need to purchase a Plan 2 license. Plan 1 and Plan 2 are the two plans for Microsoft Exchange Online Protection. Some customers hesitate to purchase this product because it adds some costs to them, which is necessary for them. It would be helpful for customers if Plan 1 features were included with EOP. However, they still need to purchase Plan 2 for advanced security features. One of our clients recently requested to compare Zimbra's features with Microsoft Exchange Online Protection. Zimbra is open source, while Microsoft Exchange Online Protection is not. When I compare both the products, many free features are available in Zimbra because it is open-source software. It makes no sense to request Microsoft Exchange Online Protection add all the features people get on open-source software like Zimbra. Hence, I would say whatever features Microsoft Exchange Online Protection has are enough. Microsoft has a dedicated research team that should research and add new techniques like phishing and spamming solutions to the product.

Quotes from Members

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

Pros

"It also gives the vulnerability status according to the versions you have selected. Let's say you have Google Chrome. It mentions the versions it has, and it updates. Within two hours of an update, it is reflected in the dashboard. That's really nice to have."
"The product's scalability is good."
"The most valuable feature is the integration. It's a single console, so we don't have to switch around between multiple products. Another valuable feature is the ease of operations and maintenance."
"Microsoft Defender for Office 365's most valuable feature is its performance."
"Defender for Office 365 has helped eliminate having to look at multiple dashboards and that is the aspect I like most about it. It is simpler, effective, and convenient. The users like the process efficiency."
"Scalability-wise, I do not think there are any issues so far."
"The initial setup was easy."
"One of the best features of the tool is its capability to aggregate insights from different workloads, basically from the Office 365 and endpoints part."
"It helps reduce spam and phishing attacks."
"The solution is easier to manage than FortiMail. You can implement policies easily."
"You can use the product to create special accounts."
"The initial setup of Microsoft Exchange Online Protection was easy."
"The pre-set policies and configuration analyzer are the most valuable features."
"I like the product's ZAP feature."
"The email policy configuration options in Microsoft EOP are satisfactory."
"Microsoft EOP's most valuable feature is a shared mailbox."
"The product's most valuable feature is third-party integrations."
"We like the holding facility that is available for potentially suspicious URL's. This allows a real-time review to be performed before the email reaches a users inbox."
 

Cons

"In one of the reports I can get the exact place where a vulnerable file resides. But for that, I need to explicitly go into the device and check. If they could include that file part in the report, without my having to go to the device itself, that would help."
"There's room for improvement regarding the time frame for retrieving emails."
"Microsoft Defender for Office 365 should be more proactive."
"Microsoft Defender for Office 365's Mac functionality requires improvement to deliver the same level of protection found on Windows devices."
"We need a separate license and we don't know how to get the license that is required."
"We need to be able to whitelist data at the backend."
"Configuring the default strategies and policies in Microsoft Defender for Cloud Apps generates a lot of noise and false positives."
"I'd like some additional features any product can give me to protect our environment in a better way."
"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."
"The solution can be complex at times. It would be nice to have the on-server version. It needs to improve the stability as well."
"Microsoft 365 Defender and EOP policies are stable with the proper license. However, with the basic policy, it's hard to say it's stable due to configuration limitations."
"It wasn't easy or intuitive enough for me to start using it. So, the reason was that the solution changed."
"The tool's classification for bulk email is cumbersome."
"We would like the solution to have more in-built intelligence in the way that it reviews potential security risks, rather than our team constantly having to update the policies."
"If a company wants to put in line back-to-back anti-spam solutions, they need to work on that part because Microsoft recommends either you use EOP as a front line or you don't use it."
"The product could be more stable. Microsoft products could be more stable because sometimes, even though they are updating some things, we cannot find those updates."
"I would like to get reports about vulnerable connections from our clients with information about domains, public IPs, etc. That would be highly useful."
 

Pricing and Cost Advice

"While Microsoft Defender for Office 365 necessitates pricier E3 or E5 subscriptions, the extensive functionality offered by these licenses across various Microsoft products justifies the investment."
"It is much more expensive than using another solution because we have had to include some options and upgrade our license."
"The product is very expensive."
"The license is expensive because the cost is based on the number of users."
"The product is expensive."
"I know that the product is incredibly expensive."
"From the pricing point of view, like any other product in the market, there is scope for negotiation."
"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."
"Email Security Gateway's pricing is good."
"Microsoft Exchange Online Protection's pricing is a little bit more because its price has recently increased."
"The pricing of the solution is reasonable."
"Online Protection is fairly expensive."
"The solution is priced high and could be less expensive compared to other solutions."
"The solution falls on the higher or more expensive side of the spectrum."
"The solution is expensive but is backed by Microsoft's reputation."
"The solution should reduce the cost."
"The price could be lower."
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Top Industries

By visitors reading reviews
Computer Software Company
16%
Financial Services Firm
8%
Manufacturing Company
8%
Government
6%
No data available
Computer Software Company
15%
Government
9%
Financial Services Firm
9%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

What do you like most about Microsoft Defender for Office 365?
Threat Explorer is an invaluable tool for me, and it plays a crucial role in helping me discern the origins of variou...
What is your experience regarding pricing and costs for Microsoft Defender for Office 365?
Money-wise, it is a part of the Office 365 ( /products/office-365-reviews ) suite, making it slightly more expensive ...
What needs improvement with Microsoft Defender for Office 365?
The main area for improvement is simplifying the implementation and rollout process. There are many conditions to be ...
What do you like most about Microsoft Exchange Online Protection?
The initial setup was easy. The configuration process is very straightforward.
What needs improvement with Microsoft Exchange Online Protection?
I would like to improve the setting of rules in Microsoft Exchange Online Protection (EOP) as it is currently working...
What is your primary use case for Microsoft Exchange Online Protection?
I am using Microsoft Exchange Online Protection (EOP) ( /products/microsoft-exchange-online-protection-eop-reviews ) ...
 

Also Known As

MS Defender for Office 365
No data available
Microsoft EOP, MS Exchange Online Protection
 

Overview

 

Sample Customers

Microsoft Defender for Office 365 is trusted by companies such as Ithaca College.
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Find out what your peers are saying about Libraesva Email Security vs. Microsoft Exchange Online Protection (EOP) and other solutions. Updated: April 2025.
849,963 professionals have used our research since 2012.