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常见退信解释

 

产生退信的原因有多种多样,下面根据您接收到退信中的关键字,来查找一下可能的原因。
退信信息
错误类型
问题原因及解决办法
User not found
550

收件人地址有错误

收件人地址错误或处于不可用状态,请检查收件人拼写或其它方式联系收件人

Recipient address rejected: Quota exceeded or service disabled
550
Mailbox not found
550
This user doesn’t have a ×××× account
554
The email account that you tried to reach does not exist
550
mailbox unavailable
550
user not exist
550
User unknown in local recipient table
550
Invalid User
550
mail size or count over quota
552

收件人邮箱空间不足

收件箱或邮件超空间限制,请用其它方式联系收件人或稍后再试

Mailbox has exceeded the limit
552
quota exceed
552
Mailbox Is Full
552
message size ×××× exceeds size limit ×××× of server mail
552
邮件大小超出限制邮件大小、附件大小超出收件服务器限制,减小邮件大小后再试
mail size or count over quota
552
Your message attachment exceeds ×××× limits
554
mail rejected by antispam server
550

邮件被对方服务器拒绝

邮件被收件方服务器判为了垃圾邮件,向邮件管理员反馈或用其它方式联系收件人

this mail is blocked by kbas system
553
sender reject
553
Service unavailable
554
Your access to this mail system has been rejected due to the sending MTA’s poor reputation
554
Too many concurrent SMTP connections; please try again later
421
System busy now, please come back later
451

邮件服务器服务异常

邮件服务器服务异常(或反垃圾策略限制原因),稍后再试或向管理员反馈

Service not available – too busy
421
Resources temporarily unavailable. Please try again later
451

未经允许不得转载:理想社会 » 常见退信解释

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