Host mail.yourdomain.cn(202.96.115.39) OPEN said 421 abc.com, SMTP service not ready, Wed, 26 Oct 2011 10:50:23 +0800
发布时间：2013-11-28 10:37:52
| 错误代码 | Host mail.yourdomain.cn(202.96.115.39) OPEN said 421 abc.com, SMTP service not ready, Wed, 26 Oct 2011 10:50:23 +0800. |
| 形成原因 | 原因可能为收件方服务器暂时繁忙或者故障导致无法投递 |
| 解决办法/流程 | 原因可能为收件方服务器暂时繁忙或者故障导致无法投递，经通过qq测试，显示一直在投递中。请通过其他方式联系收件方查看收件服务器问题。 |
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原文分享地址:http://www.hb-163.com/fault/server/720.html
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