* Mike Tancsa: > 220 as08.bis.na.blackberry.com ESMTP > HELO marble.sentex.ca > 250 as08.bis.na.blackberry.com > MAIL From: <[email protected]> > 451 #4.1.8 Domain of sender address <[email protected]> does not resolve
This could just be an SPF failure. Try some sender address you control.
