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Strange issue One User not Recieving some E-mails

Answered Strange issue One User not Recieving some E-mails

  • Thursday, February 07, 2013 5:05 PM
     
     
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    I am currently using Exchange Server 2007 on Windows Server 2008 sp2.

    I found a current issue where a client of our sent an e-mail to a say User 1 and CC to User 2
    User 1 recieved the message and User 2 did not.
    User 1 responded to the e-mail it went back to the client just fine.
    The client hit reply to all then User 1 and 2 both got the e-mail.

    What would cause this to happen?
    i have done a few things but no answer where that Carbon Copy went.
    I also have reason to believe User 2 might have more e-mail issues but i need to lock down this issue first (hopeing this will get me closer to original issue)

    Thank you all in advance

    • Edited by xxAstralxx Thursday, February 07, 2013 6:29 PM Security
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  • Friday, February 08, 2013 4:45 AM
     
     
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    Message tracking would be the place to find out.

    I suspect user error on the part of User 2.

    Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

     
  • Friday, February 08, 2013 11:44 AM
     
     
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    I checked there the message exists on User 1.

    There is no trace of that first message on User 2.

     
  • Friday, February 08, 2013 6:12 PM
     
     
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    This may blow your mind, but it's very possible that a message that looks like it was sent to a user never was.  That is, you can put recipients in the message headers of a message but not put a recipient in the envelope (RCPT TO: command in SMTP).  If you don't see the message anywhere in message tracking, then I would suggest that it was never received.

    Please read Internet RFCs 2821 and 2822 for a better understanding of how all this SMTP stuff works.

    Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

     
  • Friday, February 08, 2013 6:13 PM
     
     
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    I checked there the message exists on User 1.

    There is no trace of that first message on User 2.

    Are you sure the 1st message included both User 1 and User 2?

    Did you check the message headers too?

    Sukh

     
  • Friday, February 08, 2013 7:42 PM
     
     
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    The message headers wouldn't show whether the message was actually sent to User 2.

    Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

     
  • Friday, February 08, 2013 7:54 PM
     
     
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    I would have thought it showed the To: &Cc: & routing info. ---http://office.microsoft.com/en-us/outlook-help/view-e-mail-message-headers-HA001230300.aspx

    Sukh

     
  • Saturday, February 09, 2013 3:02 AM
     
     
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    Read RFCs 2821 and 2822 to understand how this works.

    Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

     
  • Saturday, February 09, 2013 9:54 AM
     
     
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    Havent read for some time  &  it hasnt changed. But it seems like youre referring to P1 &P2 headers and RCPT TO & To Would be interesting to know if  user 2 showed in the headers.

    Do correct me with the right information if I have misunderstood will be helpful.

    Sukh


     
    n
     
  • Saturday, February 09, 2013 4:54 PM
     
     
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    You can send an SMTP message without the destination address being in the headers.

    Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

     
  • Saturday, February 09, 2013 10:04 PM
     
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    On Sat, 9 Feb 2013 16:54:21 +0000, Ed Crowley wrote:
     
    >You can send an SMTP message without the destination address being in the headers.
     
    Yep. At least in the headers that are sent to the recipient. It's
    called "Bcc:". :-)
     
    ---
    Rich Matheisen
    MCSE+I, Exchange MVP
     
    --- Rich Matheisen MCSE+I, Exchange MVP
     
  • Saturday, February 09, 2013 10:16 PM
     
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    For this post I was thinking there was a possibility that the RCPT To:  had only user1 but the To: had user1 & User2, which would mean message only got delivered to user1. , therefore the headers may show this.

    Sukh

     
  • Sunday, February 10, 2013 3:34 AM
     
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    That's exactly the point I was getting to--the To: is the header.

    Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."