Which service encrypts the message when using a Modify SMTP Message response rule?

Which service encrypts the message when using a Modify SMTP Message response rule?

• A. Encryption Gateway
• B. TLS Sender
• C. Data Guard
• D. Mail Encryptor

Answer: (A)

When a Modify SMTP Message response rule is used, the system needs to apply encryption to the email content itself, not just secure the transport channel. The Encryption Gateway is the component designed to perform that content-based encryption for messages as they pass through mail systems, handling the policy-driven encryption and key management required to protect the message body and attachments. TLS Sender only protects the SMTP connection via TLS and does not modify or encrypt the message content. Data Guard and Mail Encryptor aren’t the services invoked by this specific DLP action to encrypt the message content in transit. So, Encryption Gateway is the service that performs the actual encryption in this scenario.

When a Modify SMTP Message response rule is used, the system needs to apply encryption to the email content itself, not just secure the transport channel. The Encryption Gateway is the component designed to perform that content-based encryption for messages as they pass through mail systems, handling the policy-driven encryption and key management required to protect the message body and attachments.

TLS Sender only protects the SMTP connection via TLS and does not modify or encrypt the message content. Data Guard and Mail Encryptor aren’t the services invoked by this specific DLP action to encrypt the message content in transit.

So, Encryption Gateway is the service that performs the actual encryption in this scenario.