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Abnormal - Cloud Email Security (EU)
Abnormal is the AI-native cloud email security platform that protects businesses from the most advanced and costly attacks while fully automating security operations. Unlike traditional SEGs, which rely on disruptive inline processing and static rules, Abnormal deploys in minutes via a three-click API integration with Microsoft 365 and Google Workspace. The solution ingests tens of thousands of signals unique to each customer, and uses behavioral AI to precisely detect and remediate business email compromise (BEC), account takeovers, invoice fraud, and supply chain attacks in real time. Abnormal delivers unmatched efficacy and a seamless experience, reducing security teams operational overhead by 95%. Recognized as a "Leader" in the Gartner Magic Quadrant for Email Security Platforms, Abnormal is celebrated for its innovation, customer centric approach, and 99% "Would Recommend" rating on Gartner Peer Insights.
Reviews (102)
Kenny M.
Frictionless Email Security, Though Legitimate Messages Still Get Misfiled
Reviewed on Oct 23, 2026
Review provided by G2
What do you like best about the product?
I find Abnormal AI fairly frictionless. It doesn’t require me to go through a lot of extra steps or slow me down, and I feel like it provides the protection we need while keeping things easy for the user. It keeps my inbox clean and makes it easy to find a message if it was incorrectly flagged. I like that it uses AI to look at what’s normal and abnormal instead of just following rules. I also find it simpler and easier to use, and it integrates well with Microsoft Outlook and Azure.
What do you dislike about the product?
I still find quite a few legitimate emails in my promotions folder, so I think Abnormal AI could do a better job of recognizing good emails. I believe it is supposed to learn when I move something back into my inbox. Setup wasn’t too bad, but we ran into some problems and didn’t get immediate support from the team. We had to wait, so the rollout wasn’t as smooth as it could have been.
What problems is the product solving and how is that benefiting you?
Abnormal AI keeps my inbox clean while making it easy to find messages that were incorrectly flagged. With our previous system, it was difficult to find filtered emails, so we sometimes missed them or had to log into another system.
Construction
Abnormal AI Saves Time and Keeps Improving Our Email Security
Reviewed on Oct 23, 2026
Review provided by G2
What do you like best about the product?
After implementing Abnormal AI for our email security, I’ve been able to gain back more time and focus on other cybersecurity areas.
What do you dislike about the product?
No real downsides, honestly—Abnormal AI makes mistakes (like every platform does). Since day one, we’ve run into quite a few false positives and false negatives, but I have noticed it improving over time.
What problems is the product solving and how is that benefiting you?
We’re seeing fewer tickets and complaints from end users. Most phishing campaigns are also being caught, and less spam is reaching inboxes.
Anonymous
Effective email protection, although training needs better adaptation
Reviewed on Oct 23, 2026
Review provided by G2
What do you like best about the product?
I like that Abnormal AI is intuitive and user-friendly for operators, offering efficiency and good value for corporations. It efficiently protects incoming and outgoing mail and helps us respond to potential attacks in time; since we started using it, we haven't had any attacks materialize in the company. I also value the training campaigns to better train users and that 365 helps us manage cases when doubts arise. I am happy with the product and the improvements they are making. The initial setup was very quick, and the pre-sales commercial team was very friendly.
What do you dislike about the product?
Perhaps the training courses could be adapted to the language of the place where the service is contracted. I also think they could improve the artificial intelligence videos and the language of the training emails.
What problems is the product solving and how is that benefiting you?
In my company, with other protections, we had suffered multiple attacks; with Abnormal AI, we have been able to combat them in time and have not had any attacks materialize. It protects incoming and outgoing mail; its campaigns help train users, and 365 helps us address cases when doubts arise.
sahil R.
Strong Email Threat Protection with Human-in-the-Loop Review
Reviewed on Oct 02, 2026
Review provided by G2
What do you like best about the product?
It works best for securing against threats and malicious emails. It scans every email, filters out suspicious data or content, and then asks a human to review anything questionable, which helps provide end-to-end security.
What do you dislike about the product?
Sometimes it flags valid emails and data, so it requires manual intervention to review them; otherwise, we can miss important emails.
What problems is the product solving and how is that benefiting you?
It reduces the manual effort of scanning suspicious emails. It scans incoming email attachments first and only allows them through if they look safe, which helps provide complete security. It also sends phishing alerts.
Anonymous
Protect Yourself and Your Inbox
Reviewed on Sep 02, 2026
Review provided by G2
What do you like best about the product?
I enjoy the protection Abnormal AI provides for my inbox. Once it's set up it prevents scams and phishing emails to come through to your inbox which alleviates stress from wondering if the conversations coming to my inbox are legit or not. Lastly, I enjoy how it provides reports so you can build self awareness to continue to protect yourself.
What do you dislike about the product?
There are not many drawbacks, but some simple attacks can make it's way to your inbox which can be a downfall, but the more you familiarize yourself with the scams its easier to see through it.
What problems is the product solving and how is that benefiting you?
As a non-profit we receive hundreds of communications a day. This program vets emails before it hits our inbox so we can efficiently collaborate with people who have genuine interest.
Corey C.
Seamless Office 365 Integration with Strong Threat and Phishing Protection
Reviewed on Sep 01, 2026
Review provided by G2
What do you like best about the product?
It easily integrates with Office 365, is very good at identifying threats, spam, phishing scams, and other threats,
What do you dislike about the product?
I wish there was the ability to implement custom graymail categories for smart filtering. Currently there only exists "Promotional", however it would be nice to add additional categories if we wanted, ie social media, etc.
What problems is the product solving and how is that benefiting you?
Abnormal AI has given us an intelligent email filter that can keep up with new risks that are developing. This is one of the important cybersecurity layers for our organization.
Jigi P.
Behavioral AI Detects Advanced Email Threats.
Reviewed on Sep 01, 2026
Review provided by G2
What do you like best about the product?
Abnormal Alerted us to sophisticated phishing emails, business email compromise, and account takeover attempts. Instead of relying on rules to detect email threats, its behavioral AI analyzes how people and systems communicate and behave to uncover suspicious emails. We also had better visibility into why an email was flagged, which was valuable during our security investigation and response efforts.
What do you dislike about the product?
Performs well once configured. The Abnormal platform works well for securing enterprise email, however it takes time to learn how it detects threats and properly tune it to meet your organization's needs. Your security team may require a learning curve when integrating with your incident response processes.
What problems is the product solving and how is that benefiting you?
Helped us better handle targeted email attacks. Abnormal reduced the risk of phishing emails, business email compromise attacks, and compromised accounts. It also decreased our reliance on heavily staffing email investigations by automating threat analysis and remediation.
Matthew P.
Keeps My Inbox Clean with Smart Email Sorting
Reviewed on Aug 27, 2026
Review provided by G2
What do you like best about the product?
I appreciate the fact that it sorts your emails based on your preferences. This feature keeps my inbox cleaned up while allowing me to look at less pertinent emails easily and on my own time.
What do you dislike about the product?
It can be a distraction when it sorts emails into folders. For a split second, all emails show up in my main inbox before disappearing to their sorted folders. It takes some getting used to, and even at that it can be annoying.
What problems is the product solving and how is that benefiting you?
We use Abnormal AI as our email security program filtering out malicious and spam emails as well as sorting emails by potential importance. It's not just providing email security, it's also saving us time.
Legal Services
Virtually Zero-Touch Email Security That Learns as It Scans
Reviewed on Aug 27, 2026
Review provided by G2
What do you like best about the product?
It’s virtually zero-touch. You enable it, it scans your mailboxes and learns, and there’s very little you need to do beyond that—no real setup of policies, groups, definitions, or configuration. Catching even a single Business Email Compromise and we're getting our money's worth. with Abnormal AI since go live, its caught almost 7000!!
What do you dislike about the product?
There’s very little to dislike. The only drawback is that you need to keep monitoring for false positives, although I suppose that’s true of most automated email security systems.
What problems is the product solving and how is that benefiting you?
It helps plug gaps in our Mimecast solution, such as Business Email Compromise and VIP Targeted Threats. It also complements our Entra User Account Compromise coverage.
Anonymous
Effortless Setup, Room for Improvement in Threat Detection
Reviewed on Aug 27, 2026
Review provided by G2
What do you like best about the product?
I like that Abnormal AI allows smaller teams to manage threats with a more hands-off approach, saving time tuning models and reviewing phishing reports. The AI security mailbox is quite good, as we can direct reports there without our internal SOC intervention, saving us invaluable time. Integrating with KnowBe4's PAB and directing reports to the AI security mailbox allows users to report potentially malicious or spam emails for another analysis. I also appreciate the integrations with Rapid7 and Entra, which help detect account takeovers and take automated actions. The upcoming integration with Cyera will likely be invaluable. The initial setup of Abnormal AI was extremely easy.
What do you dislike about the product?
We've found that some quite basic attacks get past Abnormal AI, including BEC and VIP impersonation, which didn't happen before with Darktrace. The model improvements from the D360 team need to be more considered and holistic, as similar attacks continue to get through.
What problems is the product solving and how is that benefiting you?
Abnormal AI helps prevent and detect account takeovers, malicious mail, and spam without SOC intervention, automating reports. It saves us time since we don't manually review phish reports. The AI security mailbox is beneficial for a hands-off threat management approach, integrating well with other tools and reducing false negatives.