Receive delivery receipt then delivery failure

Discussion in 'Help Desk' started by Winner, Jun 1, 2011.

  1. Winner

    Winner New Email

    Jun 1, 2011
    Likes Received:
    Hi I've got an email question regarding delivery receipts that my Google searches have been unable to answer.

    I'm doing a large mailout for a survey. In the mailout, I turned delivery receipt on in MS Outlook. For many emails, I subsequently received the following message (note I've changed the email addresses and domains to x's for privacy):

    The original message was received at Thu, 26 May 2011 21:48:57 -0400 from []

    ----- The following addresses had successful delivery notifications ----- <> (relayed to non-DSN-aware mailer)

    ----- Transcript of session follows ----- <>... relayed; expect no further notifications

    Then a little while later I got this message:

    The original message was received at Thu, 26 May 2011 21:49:27 -0400 (EDT) from xxxxxx.UTS.xxxxxx.CA []

    ----- The following addresses had permanent fatal errors ----- <>
    (reason: 550 Requested action not taken: mailbox unavailable)

    ----- Transcript of session follows ----- ... while talking to
    >>> DATA
    <<< 550 Requested action not taken: mailbox unavailable
    550 5.1.1 <>... User unknown <<< 503 Need Rcpt command.

    I got messages like this from many emails, especially Hotmail. My question is, in light of getting both a delivery receipt and a delivery failure, was the email received by the user or not?

    Thanks in advance for your help.


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