What is the recommended encryption mode for Secure Delivery policies?

The recommended encryption mode for Secure Delivery policies is the Strict (Trust Enforced) option. This mode ensures that emails are encrypted and can only be read by intended recipients, providing a high level of security. Essentially, it enforces strict controls regarding who can access the encrypted content, ensuring that only trusted users or systems can decrypt and view the data. This is crucial for maintaining the confidentiality and integrity of sensitive information transmitted via email.

In environments where data sensitivity is paramount, adopting stricter controls helps in mitigating risks associated with unauthorized access and data breaches. By using Trust Enforced encryption, organizations can comply with regulations and standards that demand stringent data protection measures. In contrast, the other encryption modes such as Relaxed, Standard, and Weak do not provide the same level of security, making them less suitable for Secure Delivery policies that aim to protect critical information.