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  1. #1
    Join Date
    Mar 2004
    Posts
    78

    Question How does Mail que/drop work? Advance.

    How does a mailing program such as exim know if your sending mail to existing email adddress but is down so puts it on a que or doesnt exist and returns the such no email to sender??

    There must be a working way, I got a single server and i dont want miss mail if i go down for a reboot or server gos down for hardware upgrade.. Trying to find out how mail programs reconised such address exist or dont exist on the internet to put it on que retry.

  2. #2
    Join Date
    May 2003
    Posts
    472
    When you send a email, exim tries to deliver it, and if it cant deliver it successfully, it will place the email into the queue.

    If it connects to the remote server its trying to send to and gets a return message like 'there is no user here', then it will drop it and send a return email to the sender (you). However if it cannot connect to the remote server it goes into queue.

    Once it is there, exim will retry sending the email a certain number of times until it gives up after a long retry period or until you manually clear the email queue.

    A broad documentation on exim delivery is available here: http://www.exim.org/exim-html-4.30/d...AQ.html#TOC189

  3. #3
    Join Date
    Mar 2004
    Posts
    78

  4. #4
    Join Date
    Mar 2004
    Posts
    78
    Any more help guys? im trying to find a way to still get mail delivered later by server que instead of me not reciing any email at all if server gos down and they get the message i just tested above.

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