退信内容(关键字) 退信原因 User unknown in virtual mailbox table 收件人邮箱不存在或邮箱没有激活,如果确认邮箱是存在的，把退信发给35进一步分析。 User unknown in local recipient table Invalid User user not exist User unknown invalid address User not found unknown user Invalid recipient User suspended sorry,we didn't accept mail by no user No such user Requested action not taken: mailbox unavailable or not local This Gmail user does not exist delivery error: dd This user doesn't have a yahoo.com account Account Inactive This account has been disabled or discontinued maildir over quota 收件方邮箱空间已满 quota limit Mailbox quota exceeded MailBox full Quota exceed the hard limit for user mail size or count over quota Mailbox disk quota exceeded Timeout quota exceeded 这种一般是服务器临时性内部超时故障，如果一直不行，请把退信发给35分析 this mail is rejected by antispam system, id=aisp8-mta@dg.**** 邮件被收件方的邮件服务器拒收，用户需要将退信转给收件方，由收件方联系其邮局管理员查询拒收的详细原因,也可以让用户将要发送的邮件内容存在文档中用winzip或winrar压缩打包后再给对方发信（一般对方的反垃圾设备不会对压缩文件进行垃圾邮件检查） Sorry, this message appears to be spam DT:SPM mx21, R8CowLDLrAxo6fhHEnA7Uw==.2775S2 1207495016 http://mail.163.com/help/help_spam_16.htm The message was rejected because it contains prohibited virus or spam content Message rejected as spam by Content Filtering Sorry your email was considered as spam your message looks like a spam... this mail is blocked by kenfor.spam system,blockid=spam-gw.kenfor.net.** Transaction Failed; Rejected by Content Filter Email was rejected by 35 AntiSpam System, id=*.* 邮件被35反垃圾网关拒收了，把退信发给35分析 Mailbox unavailable. Your IP address 222.76.*.* is blacklisted using BLCKUS-CN 收件方邮件服务器把发件方的IP屏蔽了（这里指35的邮局服务器IP），把退信发给35,由35向对方提出申诉解除 Client host [mail.*.cn4e.com] blocked using rhsbl.ahbl.org blocked using bl.spamcop.net, see http://bl.extmail.org/cgi/rbl?222.76.*.* DNSBL:521< 218.107.207.*_is_blocked.__For_information_see_http://worldnet.att.net/general-info/bls_info/block_inquiry.html> Client host [mail.*.cn4e.com] blocked using Barracuda Reputation; http://bbl.barracudacentral.com/q.cgi?ip=211.138.*.* Your IP address is from a blacklisted country. Disconnecting Message rejected because [210.17.*.*] is blacklisted at 550-relays.ordb.org Message too large 邮件大小超过了对方邮局服务器的限制 message size 14597667 exceeds size limit 10485760 of server *.com This message is larger than the recipient's maximum message size of 5242880 chars Sorry your message to ***@yahoo.com cannot be delivered because it is too large Host or domain name not found. Name service error for name=*.com type=A: Host not found 无法查找对方域名的邮件交换记录，主要是在写电子邮件地址的时候，把@后面的域名写错了；或者是其域名没做解析；或者是当时无法解析到对方域名，这种可以稍候再发；如果一直出现这个退信，把退信发给35分析 domain not found Host not found bad host domain not logged in 发信时在客户端（outlook,foxmail等）要加入身份验证，即要在“个人信息“”中填写正确邮箱地址，还要选中“SMTP服务器需要认证“”；如果确认有设置好，把退信发给35处理 Connection timed out 连接超时，可能因为网络问题无法连接到对方服务器，可以稍候重发；如果一直出现这样退信，把退信发给35处理 read timeout too many recipients 同一封信收件人地址太多了，超出了服务器的限制，可以减少收件人地址再发。 User not local; please try <forward-path> 如果确认收件人是存在的，那就是国际网络接口防火墙或网络故障导致，可以将要发送的邮件内容存在文档中用winzip或winrar压缩打包后再给对方发信