邮件传送失败 – 原因:571传送未经授权,邮件被拒绝
早上好, 自从本周早些时候我们已经改变了我们的邮件服务器的外部IP地址,并且从我们通常可以发送到的电子邮件地址得到反弹。 我们收到的错误信息之一: Reason: 571 Delivery not authorized, message refused The message subject was: Test Email Message The message date was: Fri, 7 Aug 2015 08:48:52 +0100 The message identifier was: C8/BC-15765-5E264C55 The message reference was: server-8.tower-27.messagelabs.com!1438933732!38738847!1 Please do not reply to this email as it is sent from an unattended mailbox. Please visit www.messagelabs.com/support […]