365 AI Recipient Validation

Flags wrong or missing recipients and sensitive content at send to reduce email data loss.

"Prevents misdirected emails and accidental data exposure in Microsoft 365 through real-time recipient validation."

Validate recipients and message context at send to prevent misdirected emails and accidental data exposure in Microsoft 365.

Misdirected email and accidental disclosure remain common human errors in Microsoft 365. Senders can choose the wrong addresses, omit recipients or miss sensitive content in a draft. These mistakes cause data exposure, reputational harm and recovery effort.

365 AI Recipient Validation analyses recipient selection and message context at the point of send. It flags incorrect or missing recipients and potentially sensitive content so senders can correct messages before they leave the tenant.

Where 365 AI Recipient Validation is used

Checked at point-of-send inside Microsoft 365 tenants to reduce accidental disclosures and the follow-up work they cause. Teams that send large volumes of outbound email use it to cut rework and avoid exposure incidents.

Managed service providers apply it across multiple tenants and sending domains to keep consistent controls and to help protect sender reputation for customers.

Suitable environments

Best suited to Microsoft 365 tenants with high outbound email volumes, multiple sending domains or a strong need to protect sender reputation. It also fits MSP environments where the same validation policy needs applying across several tenants.

Benefits

Prevent misdirected emails

Helps users select the right recipients and spot missing ones before sending, reducing the risk of accidental disclosure.

Reduce data loss risk

Flags sensitive content and risky send scenarios before messages leave the organisation, helping to avoid preventable data leaks.

Support privacy and compliance goals

Adds an extra layer of control around email handling, helping organisations reinforce data privacy practices and reduce compliance exposure.

Give users a chance to correct mistakes

Provides immediate warnings at the point of send so users can fix issues before an email is delivered.

Improve employee awareness

Makes users more aware of risky email behaviour over time by surfacing warnings when they are most relevant.

Give administrators better visibility

Provides a dashboard view of warning events and user responses so admins can identify trends and target awareness efforts.

Fit controls to business needs

Lets administrators adjust warning scenarios, exclusions and trusted domains so protection works in a practical way for the organisation.

Add protection without major mail changes

Works with Microsoft 365 and supported Outlook clients without requiring MX record changes or major infrastructure reconfiguration.

Capabilities

Real-time email analysis

Analyses outgoing emails in real time using machine learning to identify unusual recipient choices, missing recipients, sensitive content and risky reply scenarios.

Recipient validation warnings

Warns users when an email appears to be addressed to an unintended recipient or when someone important may have been left out.

Sensitive content detection

Identifies emails that contain sensitive information such as personal data before they are sent.

Instant feedback before send

Notifies users immediately when a warning is triggered, giving them the chance to correct the email or continue anyway.

Adaptive AI-based warnings

Adjusts future warnings and suggestions automatically based on user behaviour and how previous alerts were handled.

Smart Alerts in Outlook

Delivers warning messages through an intuitive side-panel experience designed to support seamless use, including offline functionality.

Administrative warning dashboard

Provides administrators with visibility into warning instances and how users responded, helping them monitor behaviour and awareness.

Configurable warning policies

Allows administrators to tune warning scenarios, exclude users and define trusted domains to fit company requirements.

Microsoft 365 Outlook integration

Integrates with Microsoft 365 and supported Outlook clients for Windows, Mac and Web without requiring changes to existing configurations or MX records.

Local client-side analysis

Performs analysis in the local Outlook client so email texts and attachments are not transmitted to Hornetsecurity servers for analysis.

Part of (depending on licence)

Resources

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