Encryption: Ensure that all emails are encrypted to protect data during transmission. Authentication Protocols: Implement DKIM (DomainKeys Identified Mail), SPF (Sender Policy Framework), and DMARC (Domain-based Message Authentication, Reporting & Conformance) to prevent email spoofing. Secure Access: Use two-factor authentication for accessing email marketing platforms. Regular Audits: Conduct periodic security audits to identify vulnerabilities. Employee Training: Educate employees on security best practices and how to recognize phishing attempts.