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<apac-lb-mktg@endurance.com> (expanded from <marketing@logicboxes.com>): host
    mf-active.dlls-tx.mailhostbox.com[10.25.144.162] said: 550-5.7.1 This
    message is rejected by our SPAM filters. Please refer
    http://support.mailhostbox.com/email-administrators-guide-error-codes/ for
    more information 550 5.7.1 Please see
    http://support.mailhostbox.com/email-administrators-guide-error-codes/ for
    explanation of the problem. (in reply to end of DATA command)

<premang.bhuta@newfold.com> (expanded from <marketing@logicboxes.com>): host
    mf-active.dlls-tx.mailhostbox.com[10.25.144.162] said: 550-5.7.1 This
    message is rejected by our SPAM filters. Please refer
    http://support.mailhostbox.com/email-administrators-guide-error-codes/ for
    more information 550 5.7.1 Please see
    http://support.mailhostbox.com/email-administrators-guide-error-codes/ for
    explanation of the problem. (in reply to end of DATA command)

<rajiv.barretto@newfold.com> (expanded from <marketing@logicboxes.com>): host
    mf-active.dlls-tx.mailhostbox.com[10.25.144.162] said: 550-5.7.1 This
    message is rejected by our SPAM filters. Please refer
    http://support.mailhostbox.com/email-administrators-guide-error-codes/ for
    more information 550 5.7.1 Please see
    http://support.mailhostbox.com/email-administrators-guide-error-codes/ for
    explanation of the problem. (in reply to end of DATA command)