Ready to stop zero-day and AI-driven email threats inside Microsoft 365?

STOP UNWANTED EMAIL THREATS

Protect your data, passwords, banking and other sensitive credentials that are the target of attacks by cybercriminals.

PHISHING

CEO FRAUD (BEC)

Stop targeted attacks impersonating C-level leaders and other people of influence within your organization.

RANSOMWARE

Malicious payloads can prevent access to systems and data, demanding ransom payments in return for decryption.

SPEAR PHISHING

Targeting key individuals, cybercriminals use social engineering to design fraudulent emails aimed at extracting sensitive information & funds.

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"I literally just turned it on.. the experience could not be easier!"

Wing Tang, Systems Engineer - Cyber-Risk
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What our customers are saying

Co-built with Microsoft for enhanced defence-in-depth inside Microsoft 365.

Designed for scale across hundreds of millions of Microsoft users, and powered by more than two decades of MailGuard’s specialist email security innovation.

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Email security like no other
Zero end-user training, zero extra IT workload
Single-click activation with your Microsoft credentials
Automatically moves threats to Junk or Deleted, no inbox clutter
Blocks phishing, ransomware and BEC before engagement

Validated by Microsoft leaders, chosen by security-first organisations.

Co-built with Microsoft, MailGuard 365 is Microsoft-native AI email security inside Microsoft 365 that stops zero-day and AI-driven email threats before your people ever see them.

Discover the MailGuard 365 difference

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"The partnership that we have built together is powerful! ...The innovation that MailGuard 365 brings to the market and the ability to protect customers environments is critical to creating peace of mind for everyone. Thank you for defining a solution to safeguard our customers!”

Rodney Clarke, Corporate VP Channel Sales - Microsoft

"MailGuard 365 provides enhanced defence-in-depth security for email in Microsoft 365, and according to our CEO Satya Nadella, is the type of innovation we want to see.”  

Nick Ward, Chief Architect - SaaS, Microsoft

"Customers want to purchase Microsoft products and solutions from our partners, like MailGuard, – together in one place, with one transaction, on a unified invoice. Selling through Microsoft’s Commercial Marketplace enables MailGuard to sell through Microsoft’s Cloud Solution Provider network, tapping into a pool of over 70,000 global resellers across 140 countries that receive incentives directly from Microsoft when they resell partner solutions.” 

Keith Vidal, Category Leader, Security & Developer Platforms, Microsoft Azure Marketplace - Microsoft

Speaking about MailGuard 365 and the need for a defence-in-depth approach to email security, Satya Nadella said in a recent keynote that MailGuard 365 is “the type of innovation that we want to see.”

Satya Nadella, CEO - Microsoft

Real-world results from security, risk and IT leaders.

Strengthen Microsoft 365 with Microsoft-native AI email security that blocks zero-day and AI-driven threats

For all Office 365 users

For clients with an existing Azure subscription

MailGuard 365 works inside Microsoft 365 and complements Defender and Sentinel. It fills the gap where fast-breaking threats bypass default controls, delivering hours-faster detection backed by two decades of specialist email security.

Activate native ICES protection in a single click. Our proprietary AI and machine learning block phishing, ransomware and sophisticated BEC before users ever see them.

Activate with your Microsoft login, no MX or DNS changes, no downtime.

No MX or DNS changes, no extra consoles
Executive-ready reporting that proves what was stopped
Better together: MailGuard 365 + Defender and Sentinel

Email remains the #1 attack vector for fraud and disruption

Even with Defender, some threats slip through default controls

Speed matters: MailGuard 365 stops fast-breaking attacks inside Microsoft 365

MailGuard Pty Ltd is ISO/IEC 27001:2022 Certified