Microsoft 365 domain protection

Domain Protection

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What is Domain Protection?

Email is one of the most targeted attack vectors for cybercriminals using sophisticated AI attacks. Business domains are frequently exploited in phishing campaigns, allowing attackers to impersonate companies and deceive customers, employees, and partners.

With Secure365 Domain Protection, businesses can lock down their domains, preventing unauthorised use and email-based threats such as spoofing, phishing, and business email compromise (BEC).

  • DMARC, DKIM, and SPF enforcement to secure outgoing emails
  • Protection against email impersonation and domain spoofing
  • Improved email deliverability by verifying legitimate senders

Without strong domain security measures, businesses risk:

  • Cybercriminals impersonating their company to send fraudulent emails
  • Phishing scams using fake email addresses to steal sensitive information
  • Email security vulnerabilities leading to data breaches
Domain Protection

How Domain Protection Works

Secure365 integrates domain security protocols into Microsoft 365, ensuring that only authorised senders can use your domain for email communicatio

DMARC (Domain-based Message Authentication, Reporting & Conformance)

  • Enforces a reject policy to block spoofed emails from using your domain.
  • Provides reporting on authentication failures to support proactive email security.
  • Protects against phishing and business email compromise (BEC) by rejecting fraudulent messages.

DKIM (DomainKeys Identified Mail)

  • Adds cryptographic signatures to outbound emails to verify message integrity.
  • Confirms that sent messages are authentic and have not been altered during delivery.

SPF (Sender Policy Framework)

  • Specifies authorised mail servers that can send emails on behalf of your domain.
  • Blocks spoofed messages sent from unauthorised servers to reduce impersonation risk.

Phishing & Spoofing Prevention

  • Prevents AI-driven spoofing attacks that mimic your domain or trick recipients.
  • Authenticates all email traffic to ensure legitimacy and security.
  • Strengthens email security posture by combining DMARC, DKIM, and SPF protocols.
Microsoft 365 domain protection

Key Benefits of Domain Protection

Domain Protection eliminates the risks of domain impersonation and email-based cyberattacks, helping your business maintain a trusted email reputation.

Email security

Prevents Business Email Compromise (BEC)

Stops cybercriminals from using your domain for email fraud.


Improves Email Deliverability

Ensures that legitimate emails reach the inbox, not spam folders.


Reduces Phishing Attacks

Strengthens security against fake emails sent to employees and customers.


Phishing prevention

Enhances Microsoft 365 Email Security

Works with Microsoft Defender for Office 365 to prevent email threats.

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Microsoft 365 domain protection

Who Needs Domain Protection?

  • Businesses sending emails to clients, partners, and suppliers
  • Financial institutions & legal firms handling sensitive communications
  • Retail & e-commerce businesses with customer email interactions
  • Healthcare providers protecting patient data and compliance standards

Every organisation that relies on email for communication needs domain protection to prevent fraudulent activity and phishing scams.

Your Path to Protection

7 days

Cyber Security
Assessment

An expert-led assessment of your Microsoft 365 environment and security strategy, benchmarked against security frameworks.

3 days

Security
Improvement Plan

A tailored plan to strengthen your Microsoft 365 security by addressing weaknesses and underutilised features. We’ll ensure compliance with industry standards and provides clear, practical steps.

Implementation

Certified Microsoft IT Pros will implement your security plan to keep your environment secure with the option for 24/7 incident response.

Microsoft 365 domain protection

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