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312-49 · Question #148

Which of the following email headers specifies an address for mailer-generated errors, like "no such user" bounce messages, to go to (instead of the sender's address)?

The correct answer is A. Errors-To header. The Errors-To email header directs mailer-generated error messages (such as 'no such user' bounce-back notifications or delivery failure reports) to a specified address rather than to the sender's From address. This is useful for bulk mailers or mailing lists where the administra

Submitted by skyler.x· Apr 18, 2026Network Forensics

Question

Which of the following email headers specifies an address for mailer-generated errors, like "no such user" bounce messages, to go to (instead of the sender's address)?

Options

  • AErrors-To header
  • BContent-Transfer-Encoding header
  • CMime-Version header
  • DContent-Type header

How the community answered

(30 responses)
  • A
    87% (26)
  • B
    7% (2)
  • C
    3% (1)
  • D
    3% (1)

Explanation

The Errors-To email header directs mailer-generated error messages (such as 'no such user' bounce-back notifications or delivery failure reports) to a specified address rather than to the sender's From address. This is useful for bulk mailers or mailing lists where the administrative owner wants to receive delivery errors separately. Content-Transfer-Encoding specifies how the message body is encoded; MIME-Version indicates the MIME version; Content-Type specifies the media type of the message body.

Topics

#Email headers#Email protocols#Bounce messages

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