Ready for MailGuard 365?

MailGuard 365 combines 23+ years of specialized email security expertise and IP from MailGuard, with the best of Microsoft.


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



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


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


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

Great! MailGuard 365 is exclusive to the Microsoft Marketplace, click on the button below and we'll take you there.


"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
Up to 48 hours faster in threat detection, MailGuard 365 was 
co-built with the team at Microsoft to protect 345+ million users, delivering enhanced 'defense-in-depth' protection for 
Microsoft 365. 
Email security like no other
No end-user training or IT support required for management
Frictionless, single-click activation with your Microsoft credentials for instant protection
Moves threats to the junk or deleted items folder just like Microsoft 365
Stops sophisticated criminal intent email threats like phishing, ransomware and BEC

Working [natively] on the inside of Microsoft 365, it is the last email security engine, detecting threats after the Microsoft 365 security stack (including Microsoft Defender), and complementing 3rd party security solutions like Proofpoint and Mimecast.

Discover the MailGuard 365 difference

...Read more here

"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

What people are saying

Strengthen your M365 email security

against advanced zero-day attacks

For all Office 365 users

For clients with an existing Azure subscription

Up to 48 hours faster in threat detection, MailGuard 365 is integrated with Microsoft 365 security (including Defender), adopting a ‘BETTER TOGETHER’ approach to combine 23+ years of specialist cloud email security expertise and IP from MailGuard, with the best of Microsoft. 

It delivers a native ICES (Integrated Cloud Email Security) solution in a single click, offering enhanced protection against advanced email threats like phishing, ransomware and sophisticated BEC attacks.

Single-click, auto activation using your Microsoft credentials for immediate advanced protection

No changes to your DNS, MX or your Microsoft control center
Evidence-based reporting demonstrates the results
Microsoft 365 + MailGuard 365 = BETTER TOGETHER

The #1 cybersecurity threat to businesses is email

Microsoft 365 (including Defender) can't stop all threats

Speed is the advantage of using MailGuard 365 (inside M365), to stop fast-breaking email threats

MailGuard Pty Ltd is ISO/IEC 27001:2022 Certified