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首页 > 退信分析
·553 sorry, that address is not in my list of al[2024-6-29]
·554 Message is not RFC compliant[2024-6-29]
·554 Refused. Your domain name is listed in the [2024-6-29]
·550 RP:FRL 网易邮箱不开放匿名转发（Open relay）[2024-6-29]
·553 sorry, you don't authenticate or the domain[2024-6-29]
·452 4.3.1 Insufficient system resources[2024-6-29]
·550 5.1.1 Error: invalid recipients is found fr[2024-6-29]
·550 Requested mail action not taken: Fake sende[2024-6-29]
·554 5.7.1 Message rejected because of unaccepta[2024-6-29]
·553-you are trying to use me [server-15.tower-1[2024-6-29]
·550 5.7.1 [CS] Spam Detected. Contact your serv[2024-6-29]
·550 action not taken, too long header[2024-6-29]
·554 5.7.1 You are not allowed to connect[2024-6-29]
·553 5.7.1 SpamTrap=reject mode[2024-6-29]
·550 unable to validate sender address using cal[2024-6-29]
·The semaphore timeout period has expired[2024-6-29]
·550 5.7.511 Access denied, banned sende[2024-6-29]
·554 5.7.1 The message from with the subject of [2024-6-29]
·552 Too much mail data[2024-6-29]
·554 Sorry, message looks like SPAM to me[2024-6-29]
·550-Verification failed for[2024-6-29]
·Email exceeds maxinmum nested level[2024-6-29]
·550 5.7.1 Header contents violates site policy [2024-6-29]
·500 Line too long[2024-6-29]
·550 Sender has no A, AAAA, or MX DNS records[2024-6-29]
·550 Relaying mail to 81170011@cptt.com.tw is no[2024-6-29]
·554 mail server permanently rejected message (#[2024-6-29]
·552 Sorry, your host is blocked by spam detecti[2024-6-29]
·554 5.7.1 Client host rejected: Access denied[2024-6-29]
·451 Failed to store message for[2024-6-29]
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