杭州交通信息网怎样知道有没有胎停:为什么用126邮件会发送失败，出现了系统退信，是什么意思？
来源：百度文库 编辑：杭州交通信息网 时间：2024/04/29 01:19:15
用126邮件发送失败，出现系统退信，下面这是退信内容，什么意思？
This message is generated by COREMAIL email system.
I'm sorry to have to inform you that the message returned
你发送到xxxxxxx@eche-china.com的邮件由于以下原因被退回：xxxxxx@eche-china.com SMTP error, RCPT TO: 553-This target address is not our MX service
553-client, nor Your envelope sender is user
553-that is allowed to openly use us to relay
553-to any arbitary address throw us.
553 We don't accept this recipient.
This message is generated by COREMAIL email system.
I'm sorry to have to inform you that the message returned
你发送到xxxxxxx@eche-china.com的邮件由于以下原因被退回：xxxxxx@eche-china.com SMTP error, RCPT TO: 553-This target address is not our MX service
553-client, nor Your envelope sender is user
553-that is allowed to openly use us to relay
553-to any arbitary address throw us.
553 We don't accept this recipient.
最近本人也遇到这样的情况。我采用反复发送的方式来解决，另外，你核实一下对方的邮箱。