SMTP error, MAIL FROM: 550 5.1.0 Invalid sender domain
发布时间：2013-11-27 19:49:11
| 错误代码 | SMTP error, MAIL FROM: 550 5.1.0 Invalid sender domain. |
| 形成原因 | 无效的发件域名 |
| 解决办法/流程 | 邮件到达收件方服务器，收件方服务器拒收并返回退信：
英文说明:SMTP error, MAIL FROM: 550 5.1.0 Invalid sender domain. 无效的发件域名。
收件方的过滤规则较为严格，针对您的发件ip进行反解但是并能与网易的mx记录配对上，也有可能是收件方未能查出您的mx目前的正确指向。
另外一种原因就是收件方服务器的误判。
建议联系收件方并了解详细可以避免退信的方法。 |
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原文分享地址:http://www.hb-163.com/fault/dns/618.html
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