On 14 Jan 2009 at 10:52, Randy Klumph wrote: >All Charter.net subscribers across all our hosted lists are generating >the following error (only Charter.net is generating this error) > >[log in to unmask] >Last error: 5.1.0 553 5.1.0 tr.wou.edu does not exist Just speculation, but could this be some kind of mumble from Charter that they won't accept mail from a server that doesn't have its own MX record? -Kary