This event is executed if delivery to a recipient fails. If a message to multiple recipients cannot be sent, the event is executed once for every recipient.

Notice that the event is only executed if hMailServer has accepted a message for delivery. If hMailServer rejects a message, for instance during anti spam check, OnDeliveryFailed is not excuted.


OnDeliveryFailed(oMessage, sRecipient, sErrorMessage)


  • oMessage - The message which has not been delivered.
  • sRecipient - The recipient which the message has not been delivered to
  • sErrorMessage - The error which caused the delivery failure

Result values

  • None

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