My version WP e-Commerce 220.127.116.11 is not able to send shopping notification to any @hotmail.com or @outlook.com. Message received says:
2013-08-28 01:45:07 1VEYYu-0004fm-PC ** firstname.lastname@example.org R=dnslookup_no_ipv6 T=remote_smtp_batv: SMTP error from remote mail server after end of data: host mx1.hotmail.com [18.104.22.168]: 550 5.7.0 (BAY0-MC4-F3) Message could not be delivered. Please ensure the message is RFC 5322 compliant. Any Comments?