问：tianhua-plastics.com这个是客户绑定的邮箱域名
kiran<an<kiran@cskllc.com>这个是对方的邮箱账号 邮件一直发不过来对方邮件一直发送不过来，报错如下：
—–Original Message—–
From: Mail Delivery System [m [mailto:Mailer-Daemon@london.sibername.com]
Se]
Sent: Monday, September 03, 2018 4:59 AM
To: o: kiran@cskllc.com
Sub
Subject: Mail delivery failed: returning message to sender
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
marketing@tianhua-plastics.com
host st mx1.myhost.net [11 [t [127.0.0.1]
]
SMTP error from remote mail server after end of data:
554 5.7.1 Spam message rejected
这个是报错
答：您好，这是被判为垃圾邮件拒收了。
可以加到白名单再观察一下。
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免费迁移流程：https://www.35.com/faq/list.asp?unid=2139
您目前使用的老邮局因很久没有升级了，部分问题比较难于解决，建议您尽快完成迁移，谢谢！
