SMTP error, DATA: 550 Protocol violation
发布时间：2013-11-27 23:24:37
| 错误代码 | SMTP error, DATA: 550 Protocol violation |
| 形成原因 | 退信说明违反协议，可能由于收件方某些策略拒收。 |
| 解决办法/流程 | 收件方返回退信说明违反协议，可能由于收件方某些策略拒收，但退信没有说明何种策略。
同时，我们使用其他品牌邮箱发送邮件，均返回一样的退信，须请收件方管理员核实目前服务器是否有配置正确，我们使用qq邮箱测试也同样返回退信。 |
本文由163企业邮箱首选网易品牌(http://www.hb-163.com/)原创编辑，转发请注明来源及版权归属。
原文分享地址:http://www.hb-163.com/fault/policy/675.html
上一篇：Your message Subject:*** was not delivered to: 123@abc.com because: Router: Message transfer for 1 recipients has been delayed until low priority time range 21:00:00 - 06:00:00 SMTP
下一篇：The following message to <123@abc.com> was undeliverable
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