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首页 > 退信分析
·550 5.7.1 message content rejected[2024-6-29]
·Could not connect to 0.0.0.0 on port 25 since t[2024-6-29]
·421 4.4.5 Service not available, too many conne[2024-6-29]
·550 Mail is rejected by recipients[2024-6-29]
·550 Backend Replied [xxx.mxlogic.net]:Denied by[2024-6-29]
·554 Content filter will not allow this message[2024-6-29]
·554 5.7.1 This message has been blocked because[2024-6-29]
·550 ACL:RE Hit acl, permission deny[2024-6-29]
·550 5.7.0 Local Policy Violation. check SPF[2024-6-29]
·553 sorry, you must authentication[2024-6-29]
·Requested mail action not taken: Invalid IP[2024-6-29]
·554 rejected due to spam URL in content[2024-6-29]
·552 5.1.1 Mailbox delivery failure policy error[2024-6-29]
·139邮箱常见退信说明[2024-6-29]
·598 maillist rejected[2024-6-29]
·554 5.7.1 Delivery not authorized[2024-6-29]
·554 rcpt is rejected: 218[2024-6-29]
·554 5.6.1 Body type not supported by Remote Hos[2024-6-29]
·Recipient address rejected:ERS-QIL[2024-6-29]
·suspected spams or account(IP) exception[2024-6-29]
·554 failed MAIL FROM verification with the FROM[2024-6-29]
·550 Mail was identified as spam[2024-6-29]
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