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E-mail "Deferred: 452 4.3.1 Insufficient system resources" problems

Discussion in 'E-mail Discussions' started by oml1, Jan 25, 2013.

  1. oml1

    oml1 Registered

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    Hi,
    When sending to an established newsletter list just moved to a shiny new cpanel server, the client is complaining of too many bounces.

    Many with the error shown below:
    ...........
    Deferred: 452 4.3.1 Insufficient system resources
    Message could not be delivered for 12 hours
    Message will be deleted from queue
    ...........

    We see to have plenty of resouces and there is no limits set on numbers of sends as far as I'm aware. Any suggestions please?
     
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