What is the purpose of using email encryption?

Using email encryption is primarily about safeguarding the content of the email. It ensures that information transmitted via email is only accessible to those who are authorized to read it. By encrypting an email, the message is encoded so that only recipients who possess the corresponding decryption key can decipher and access the information within. This is particularly important for protecting sensitive data, such as personal information, financial details, or confidential communications.

In contrast, other options do not directly relate to the fundamental purpose of email encryption. Automated sorting of emails pertains to organizing messages based on certain criteria and does not involve securing content. Increasing email storage capacity relates to the amount of data that can be stored on email servers and is not affected by encryption practices. Similarly, reducing the time taken for emails to be sent is focused on the efficiency of email delivery rather than the security of the content being sent. Thus, the core functionality of encryption is to protect the confidentiality of email communications by ensuring that only intended recipients can access the data.