In today's digital landscape, it is vital for your organization to protect sensitive data. Although email is a fundamental means of communication, it is susceptible to various threats. Email serves as a primary channel for exchanging information which means your organization must implement strong security measures to protect data. This publication provides guidance on the key email security practices and protocols your organization should adopt, with the goal of strengthening your defences and upholding the confidentiality , integrity , and availability of your communications and data. This publication will assist your organization in implementing protective measures such as encryption , authentication , and secure gateways. In addition to protective measures, you should also enhance your employees’ awareness of and compliance with cyber security requirements and best practices. Collectively, these measures will enhance your organization’s confidence to navigate the digital landscape, all while ensuring the security and privacy of your sensitive information.