1. Briefly describe the S/MIME message content types. 2. What is the utility of a detached signature? 3. Discuss in brief the DKIM strategy 4. The character sequence “CRLF.” indicates the end of mail...

1. Briefly describe the S/MIME message content types.

2. What is the utility of a detached signature?

3. Discuss in brief the DKIM strategy

4. The character sequence “CRLF.” indicates the end of mail data to a SMTP-server. What happens if the mail data itself contains that character sequence?

5. Explain the different protocols used for transferring e-mail.