Auto-Responders
Messages generated by auto-responders are welcome if they contain useful and relevant information. An example of such information would be if the person/department attempting to be reached is unavailable and the message indicates when they will become available again.
However, extraneous auto-responder generated messages that provide no useful information are regarded as spam. A common example of an extraneous auto-responder message is one that simply states that a message was received by the mail server and contains no relevant information in response to the actual message.
Please configure your mail servers to opt us out of all extraneous auto-responder generated messages if your organization takes part in this poor practice.