Whether you're using Microsoft 365 (Office 365) or Google Workspace (formerly G Suite), effective email Data Loss Prevention (DLP) starts with understanding what sensitive information your organization needs to protect.
Some key best practices include:
- Identify sensitive data such as PII, financial information, healthcare records, and intellectual property.
- Use built-in sensitive information types or create custom detection rules for your business needs.
- Start by running DLP policies in audit mode before enforcing them to minimize false positives.
- Apply different rules for internal and external email recipients.
- Scan both email content and attachments for sensitive data.
- Use user notifications or policy tips to educate employees before blocking emails.
- Combine DLP with email encryption for highly confidential information.
- Regularly review reports and fine-tune policies based on user activity and compliance requirements.
Microsoft 365 uses Microsoft Purview DLP, while Google Workspace provides Gmail DLP and Content Compliance rules. Both platforms support customizable policies to help organizations protect sensitive information while maintaining productivity.
