How does Sophos' email encryption feature support organizational security?

Sophos' email encryption feature enhances organizational security by ensuring that emails are sent securely and can only be decrypted by the intended recipients. This is critical for protecting sensitive information from unauthorized access during transmission. By encrypting emails, Sophos prevents interception and unauthorized reading, which are common risks when transmitting confidential data over the internet.

Encryption transforms the content of an email into a coded format, making it unreadable to anyone who might intercept it en route to its destination. Only the intended recipient, who possesses the necessary decryption key or method, can access the original content. This ensures that sensitive information, such as personal data, financial details, or proprietary business communication, remains confidential and secure from outside threats.

The other options do not directly contribute to the security and confidentiality of email communications in the same way. Compression of email attachments does not protect the content; marking emails as spam pertains to filtering emails rather than securing them, and archiving messages is unrelated to the security of present communications.