Email Bounce Back Message


  • I am unable to send email to a certain address. Here is the message:

    Delivery has failed to these recipients or distribution lists:


    An error occurred while trying to deliver this message to this recipient e-mail address. Microsoft Exchange will not try to redeliver this message for you. Please try resending this message, or provide the following diagnostic text to your system administrator.


    The following organization rejected your message:



    Sent by Microsoft Exchange Server 2007


    Diagnostic information for administrators:


    Generating server:

  #550 Mailbox unavailable or access denied - <> ##


    Original message headers:


    Received: from ([fe80::1]) by ([fe80::1%1])
     with mapi; Wed, 19 Aug 2009 10:22:53 -0400
    From: User <>
    To: "" <user@af,>
    Date: Wed, 19 Aug 2009 10:27:17 -0400
    Subject: Sol. F1T0EJ919A001 Training for 8570 Requirements
    Thread-Topic: Sol. F1T0EJ919A001 Training for 8570 Requirements
    Thread-Index: Acog2ScI9wP9wEcHS/mXSwMc+MmC+Q==
    Message-ID: <>
    Accept-Language: en-US
    Content-Language: en-US
    acceptlanguage: en-US
    Content-Type: multipart/alternative;
    MIME-Version: 1.0

    Any help will be greatly appreciated.
    2009年8月19日 14:50



  • This message doesn’t contain any detail as to why you cannot send other than they are actively rejecting the message.  this means the mailbox is either nonexistent or they don’t like your connection for reasons undisclosed.  being a military domain, this does not surprise me.  I would look to make sure you have valid SPF records, and PTR records and make sure you aren’t on any RBLs.  Otherwise you need to contact the recipient and troubleshoot from their end.

    Mike Crowley A+, Network+, Security+, MCT, MCSE, MCTS, MCITP: Enterprise Administrator / Messaging Administrator
    Read my 2¢ on the Psychology of a TechNet Forum Thread!

    • 回答の候補に設定 Anil K Singh 2009年8月19日 16:32
    2009年8月19日 15:05
  • Thanks Mike. It turns out that this email address is incorrect. Sorry to waste your time. Thanks.
    • 回答としてマーク Mike Shen 2009年8月28日 10:10
    2009年8月19日 15:28