SMTPTimeToWaitForResult

Enter the time in milliseconds for the mail system to wait for the result of sending each email. If the time is set to 0, the system doesn't wait, and the returned result will be always be %ObEmail_SentButResultUnknown ( = -1). If you set this parameter to -1, the system will wait for the completion of the send process. The default value of this setting is 10000 (ten seconds).