SMTP error,RCPT TO:554 :Relay access

SMTP error,RCPT TO:554 :Relay access “wdlysgs@126.com SMTP error,RCPT TO:550 Invalid smtp error ,rcpt to:550 unknown 邮件总是被退回 系统退信后显示 我该怎样才可以发邮件 qiangqiang5168@126.com SMTP error,RCPT TO:550 Invalid User我在发邮时被退回,出现这样的字样, ####@163.com SMTP error,RCPT TO:550 Invalid User还有一个问题:#####@163.com SMTP error,DOT:550 Requested action not taken:mail aEBwBsRYx0OP_foF.9702S2 is rejected,mx6,FNG请赐教 huangjianqiang1986@163.cm SMTP error,RCPT TO:550 Domain does not exist; please check your spelling.Le domaine n'existe pas ; veuillez verifier votre epellation.El dominio no existe; compruebe por favor su deletreo. 英语翻译host gmail-smtp-in.l.google.com[209.85.143.114] said:550 5.2.1 The email account that you tried to reach is disabled.u12si3127416tia.3 (in reply to RCPT TO command). (in reply to RCPT TO command). 550 unknown user (in reply to RCPT TO command). hb--education@163.com (in reply to RCPT TO command). 这几行英语说的是什么含义?This message is generated by COREMAIL email system.I'm sorry to have to inform you that the message returnedhanzhixiu@21cn.com SMTP error,DOT:553 Mail data refused by AISP,rule [6535799]. 550 the rcpt account is invalid (in reply to RCPT TO command)来自E-MIAL的退信是什么意思呢? 能收不能发,错误提示是：said:550 5.0.5 Sender Address Blacklisted (in reply to RCPT TO command)是寄件人被记于黑名单了吗? error 1310.error writing to 发邮件不成功这是什么意思?452 4.2.2 Over quota (in reply to RCPT TO command)452 4.2.2 Over quota (in reply to RCPT TO command) 英语翻译Hi.This is the smtp delivery program.I'm afraid I wasn't able to deliver your message to the following addresses.This is a permanent error; I've given up.Sorry it didn't work out.,sorry,no mailbox here by that name.(#5.1.1)--- Below this 这句话是什麼意思?gz@jydragon.com SMTP error,DOT:552 This user's disk quota exceeded,anyway you can send a smail ( said:550 5.1.1 No such user (in reply to RCPT TO command).我不懂这些英文