分类：电脑/网络-互联网-上网帮助
问题：为什么我的邮箱总是收到发送失败的系统信?最近每发一封邮件,就会收 
最近每发一封邮件,就会收到一封信,内容如下:Undelivered Mail Returned to SenderThis is the mail system at host  .I'm sorry to have to inform you that your message could notbe delivered to one or more recipients. It's attached below.For further assistance, please send mail to postmaster.I最近每发一封邮件,就会收到一封信,内容如下:Undelivered Mail Returned to SenderThis is the mail system at host  .I'm sorry to have to inform you that your message could notbe delivered to one or more recipients. It's attached below.For further assistance, please send mail to postmaster.If you do so, please include this problem report. You candelete your own text from the attached returned message.                   The mail system< >: host  [ ]    said: 554 5.7.1 < >: Relay access denied (in    reply to RCPT TO command)是什么问题?
回答：过去我也遇到此情况，现在解决了。发生此情况有两种可能，其一：接收方可能把你的邮箱列入黑名单了。其二：对方可能点了拒收按钮，拒收了你的邮件。发生上述情况，系统就会提示你发送失败。