Your Business Deserves Stronger Protection

Email is still the number one vector for cybercrime. Phishing, ransomware, and Business Email Compromise (BEC) attacks are bypassing traditional defenses inside Microsoft 365. Even with Defender and Sentinel running, sophisticated threats are still getting through. MailGuard 365 fills that critical gap.

"Gartner has identified MailGuard as a bright spot in the global Cloud Email Security market and innovative technology leader!"

Why MailGuard 365?

MailGuard 365 is the world’s only solution co-developed with Microsoft to complement Defender and Sentinel, yet fully capable as a standalone layer with the same high-level protection, even if those tools are not in place. It's the only Microsoft-native AI threat detection layer that stops breaches Microsoft 365 misses, without disrupting workflows or adding complexity. It operates entirely within your Microsoft tenant, keeping 100 percent of your email data secured where it belongs.

MailGuard 365 detects sophisticated, fast-breaking zero-day email threats hours faster than Microsoft 365 alone, benefiting from more than 20 years of specialist cloud email security expertise, including proprietary AI and ML-powered email threat protection.

Deployed in under 60 seconds, it delivers immediate value with a 30-day, risk-free proof of concept. You’ll see results before you ever receive an invoice. Simply deactivate with a toggle.

Blocks unknown threats: Detects threats up to 7 months earlier than Microsoft native controls, in real time.
Activate fast: Live in under 60 seconds, using Microsoft credentials.
Proof without pressure: Pilot activation -> Miss-rate report -> Evidence-based analytics
No MX or DNS changes: No need to reroute or reconfigure email flow.
Built for compliance: Aligned with NIST, ISO 27001:2022, APRA CPS 234, Essential Eight, GDPR and IRAP.
Billing made simple: One consolidated Microsoft invoice.
Transparent pricing: From $2.25 to $3.00 per user per month, pay-as-you-go.
Always-on support: Expert help when you need it, included as standard.

Who Chooses MailGuard 365?

MailGuard, a GlobalGuard company, is ten times larger than the next email security provider in the Asia-Pacific region. More than 5,500 organizations across 141 countries rely on us. That includes publicly listed companies, banks, law enforcement, manufacturers, logistics leaders, healthcare providers and government departments, many for over 20 years.

78% of MailGuard 365 customers already use Microsoft Defender. They choose us to close the breach window faster. MailGuard 365 is the milliseconds between Microsoft 365 and safety.

FAQs

Q: If I already have Microsoft 365 security, why do I need more?

A: Microsoft 365 offers a solid foundation, but the reality is, threats still get through. MailGuard 365 detects zero-day, AI-driven and socially engineered attacks that even Defender can miss, adding a crucial layer of speed and precision, working natively within Microsoft 365 to strengthen your defenses without disruption.

Q: Will it complicate our setup?

A: No. No DNS, MX or user changes are required. Activate in under a minute, and deactivate with a single toggle if needed.

What Industry Leaders Say

"That ability to laterally move faster than the adversary is going to be so important..." and that MailGuard 365 "...is the type of innovation we want to see." — Satya Nadella, Chairman and CEO, Microsoft

"That’s why I support MailGuard 365’s mission, as a solution designed to intercept threats before they reach inboxes. It’s fast, focused, and built with intent in mind." — Donald Good, Former Deputy Assistant Director, FBI Cyber Division

"You are being led by what I see as one of the world’s best, at protecting secure infrastructure, securing your people, and securing your business." — Steve Miller, COO, Microsoft Asia

"MailGuard 365’s speed is certainly working for us." — Co-owner & COO, Legally Yours

"If you own a large tier business, you need MailGuard 365 to fortify your defenses. Too many businesses think it won’t happen to them." — Senior Network Admin, Victor Valley Transit Authority

No guesswork. Just results.

See exactly what gets through Microsoft and what MailGuard 365 stops. Activate in seconds. Review hard data. And stay protected with the world’s most complete Microsoft 365 email defense.

For Nonprofits

Recognized nonprofit, education and government organizations may qualify for discounted pricing. Proof of eligibility is required. Contact nonprofit@mailguard365.com for details.