AI-Native Email Security for Office 365—Now Live on Azure Marketplace

The reality is that phishing, business email compromise (BEC), and scams are no longer sporadic nuisances – they’re widespread, AI-driven threats targeting Office 365 environments at scale. Traditional email gateways and native Microsoft protections simply do not stack up against today’s evolving threats, especially when these threats are designed to bypass rule-based identification (and they always seem to). Effective email security for Office 365, built natively with multi-modal LLMs, is essential to combat the growing sophistications of attacks.

That’s why we’re publicly announcing that Mesa Security is now live on the Azure Marketplace, providing Office 365 users with a fast, intuitive, AI-native way to protect their email – without the complexity or expense around legacy solutions. Our solution enhances email security for Office 365 users significantly.

Mesa Security Delivers Advanced Email Security for Office 365

Office 365 is one of the most targeted platforms for email attacks. While Microsoft Defender for Office 365 provides some basic protection, many organizations find it lacks the speed, usability and AI-driven sophistication to detect emerging threats in real-time. Thus, implementing robust email security for Office 365 is a critical step for organizations.

Mesa Security provides the missing piece with by deliver an AI-native email security for Office 365 through:

• LLM-powered phishing detection
• Real-time detection and auto-remediation in under 5 seconds
• Pay-as-you-go flexibility
• Designed for lean security teams with a user-friendly interface

If you’re a small company or a mid-size company, Mesa gives you the equivalent of a dedicated security team – without actually needing one.

Easy Deployment for Office 365 and now on Azure Marketplace

Mesa Security’s advanced email security for Office 365 is now listed in Azure Marketplace, making it easier than ever to:

• Deploy Mesa instantly into your Microsoft 365 environment
• Integrate easily into Outlook and Exchange Online
• Identification and remediation of threats with zero initial setup of additional infrastructure.

Getting started with Mesa Security is very simple: You can be up and running within minutes with no sales calls, no onboarding and billing through your existing Microsoft agreement. You need to be an administrator for your Microsoft 365 tenant and use those Microsoft Single Sign On (SSO) credentials associated with your company domain to start an account.

Please visit the following link to get started: https://platform.mesasecurity.com/register

Threats Mesa Security Detects That Others Miss

Mesa Security’s AI-native engine is designed to identify advanced threats, especially those that have a high level of sophistication. Advanced email threat categories detected are :

• Business Email Compromise (BEC) such as Executive impersonation and invoice fraud
• Credential Phishing such as fake log-in pages and MFA bypasses
• Vendor Email Compromise (VEC) such as hijacked supplier accounts with familiar verbiage
• Insider Threats such as malicious or negligent user actions
• Callback Phishing such as low-signal phone number based attacks with delayed payload
• Ransomware and Malware such as malicious links, docs and/or executables
• Spam, Extortion and Scams that are AI-generated, or volume-based threats

Detection by Mesa is contextual and employs LLMs to assess intent, behavioral norms, and tone, not just keywords or URLs. To learn more about how Mesa leverages multi-modal LLMs for threat detection, click here to learn more about our product.

Remediation in Less than 5 Seconds

In email attacks, fast is critical. Mesa Security:

• Detects threats in seconds.
• Classifies and categorizes in less than 5 milliseconds.
• Remediates automatically—before the user even notices.

So before a user has an interaction with their email, the threat is taken care of. This lowers help desk tickets, reduces incident response workloads, and lessens the risk of compromise.

When comparing email security for office 365, we have to mention the default solution that many small and medium businesses use: Microsoft Defender. However, there is a big difference between a solution like Mesa Security that was built from the ground up with multi-modal LLMs and a legacy solution like Microsoft Defender. Let’s compare Microsoft Defender for Office 365, which often flags suspicious messages and involves a manual review or user report, particularly for low-signal threats such as VEC or social engineering emails with no links or attachments.

Mesa Security vs Microsoft Defender

Mesa Security is not meant to replace a secure web gateway or any type of on-premises email security solution but to add an API-based email security detection and remediation to Office 365 cloud services. When comparing Mesa Security to Microsoft Defender for Office 365, we believe we excel in may different categories including detection, remediation, and ease of use:

Built for SMB. Designed for Speed. Powered by AI.

Mesa Security is designed for IT and security teams looking for real protection, with no bloat. Whether you are protecting a company with 50 people or a team of 1,000, you receive:

• A self-serve deployment model.
• Smart user protection recommendations.
• Risk scoring based on coverage and prioritizing risk.
• No lock-in, no contracts, just $2/user/month.

Now available in the Azure Marketplace, it’s easier than ever to deploy into your Office 365 tenant.

Try Mesa on Azure Marketplace Today

You don’t need a red team or SOC to keep your email protected. With Mesa security, you can:

• Detect advanced threats
• Remediate automatically
• Protect the most risky users
• Deploy in minutes
• Pay-as-you-go

Begin protecting your Office 365 users in less than 10 minutes. Find Mesa Security in the Azure Marketplace, and see why it is the most intuitive and effective email security platform built to solve today’s growing surge in AI-driven phishing and scam attacks.