退信

• 退信提示：“554 5.7.0 message size violation”
• 退信显示：您的邮件大小超过收件方（google）服务器对于邮件大小的限制。（Your message exceeded Google's message size limits）
• 退信提示：“550 Recipient Suspended.”
• 退信提示：“550 Domain frequency limited”
• 退信提示：“550 Ip frequency limited”
• 退信提示：“SMTP error,RCPT TO：550 USe mail relays of your ISP”
• 退信提示：“MD Server Error 5：database error.”
• 退信提示：“451 Requested action aborted：local error in processing”
• 退信提示：“User reject。”
• 退信提示：“bad welcome response from server,554 ip is rejected,smtp auth error limit exceed。”
• 退信提示：“host [xxx.xxx.xx.xx] said：554 sorry, Spam detected by SpamAssassin (# 5.3.4) (in reply to end of DATA command)”
• 退信提示：“The message was rejected because it contains prohibited virus or spam content”
• 退信提示：“SMTP error, RCPT TO：551 5.7.1 Go away!”
• 退信提示：“SMTP error, DOT：554 sorry, Spam detected by SpamAssassin (#5.3.4).”
• 退信提示：“SMTP error, OPEN：550 Denied by policy.”
• 退信提示：“SMTP error, DOT：553 Blocked Using Spam Pattern, Your Message May Contain The Spam Contents.”
• 退信提示：“SMTP error, DOT：554 Transaction Failed。”
• 退信提示：“DOT：554 this mail is rejected by antispam system”
• 退信提示：“SMTP error, DOT： 553 5.7.3 CONTENT REJECT.”
• 退信提示：“SMTP error, DOT：550 5.0.5 Looks like to Spam”
• 退信提示：“DOT：550 spam message rejected”
• 退信提示：“582 this message could not be delivered.”
• 退信提示：“DOT：550 Mail rejected”
• 退信提示：“554 Denied (Mode：normal）”
• 退信提示：“554 Virus content detected,Your mailbox found the virus，pleasere-sent after killing virus.”
• 退信提示：“554 5.7.1 Message cannot be accepted, spam rejection.”
• 退信提示：“551 virus infected mail rejected”
• 退信提示：“554 5.6.0 Invalid content”
• 退信提示：“550 Mail content denied”
• 退信提示：“550 Your message was rejected because it appears to be part of a spam bomb。”
• 退信提示：“550 MFE：Message detected as spam”
• 退信提示：“550 5.9.4 rejected by system”
• 退信提示：“550 Error：mail rejected by antispam server.”
• 退信提示：“550 5.7.1 Message rejected as spam by Content Filtering.”
• 退信提示：“mailbox 123@abc.com is restricted。”
• 退信提示：“recipient does not have an account.”
• 退信提示：“SMTP error, RCPT TO：550 5.2.1 The email account that you tried to reach is disabled.”
• 退信提示：“The email account that you tried to reach does no exists.”
• 退信提示：“SMTP error, DATA：554 One or more of the sender or recipients in your email are invalid and not accepted.”
• 退信提示：“Recipient address rejected：User unknown in virtual mailbox table。”
• 退信提示：“Host abc.com(xxx.xxx.xx.xx) DOT said 421 Syntax error.”
• 退信提示：“RCPT TO：550 Disabled.”
• 退信提示：“553 5.3.0 ... No such user.”
• 退信提示：“554 delivery error：dd This user doesn't have a yahoo.com account (abc@yahoo.com)”
• 退信提示：“550 This account is not allowed... abc@abc.com”
• 退信提示：“550 Unrouteable address”
• 退信提示：“550 5.1.1 User unknown.”
• 退信提示：“550 Mailbox not found”
• 退信提示：“550 unavailable mail user.”
• 退信提示：“550 5.1.0 Address rejected abc@yourdomain.com.”
• 退信提示：“SMTP error, RCPT TO：550 Use mail relays of your ISP..”
• 退信提示：“SMTP error, DOT：519 Rejected.”
• 退信提示：“SMTP error, RCPT TO：550 Host xxx.xxx.xx.xx has been banned from this server (5).”
• 退信提示：“Host abc.com(xxx.xxx.xxx.xxx) MAIL FROM said 453 Blocked by NSBL。”
• 退信提示：“550 Senderis in blacklist”
• 退信提示：“501 5.7.1 Sender refused by the DNSBL zen.spamhaus.org.”
• 退信提示：“550 5.7.1 xxx.xxx.xxx.xxx has been blocked by SBL+.”
• 退信提示：“UnKnown can't find abc.com： Non-existent domain”
• 邮件被收件方拒收，收件方返回退信说明 “550 Mailbox not found”。
• 退信提示：“SMTP error, RCPT TO：553 5.7.1 sorry, that domain isn't in my list of allowed rcpthosts (chkuser)”
• 退信提示：“SMTP error，DOT：550 abc.com has no A,AAAA,,or MX DNS records…”
• 退信提示：“SMTP error, RCPT TO： 550 [PERMFAIL] abc.com requires valid sender domain”
• 退信提示：“SMTP error, RCPT TO：550 No such domain at this location”
• 退信提示：“SMTP error, MAIL FROM：553 SPF check refused(softfail)”
• 退信提示：“No MX or A records for abc.com”
• 退信提示：“SMTP error, DOT： 554 5.7.1 This message has been blocked because the return email domain is invalid.(failed to obtain DNS record for domain abc.com)”
• 退信提示：“Host abc.com(xxx.xxx.xx.xx) MAIL FROM said 451
• 退信提示：“Host abc.com(xxx.xxx.xxx.xx) RCPT TO said 421 Refused. You have no reverse DNS entry. Contact abuse@abc.com for details”
• 退信提示：“550 Sender domain must exist ”
• 退信提示：“501： domain missing or malformed”
• 发往aol.com收到的退信。
• 退信提示报错“domain abc.com MX query return retry”
• 退信提示：“delivery temporarily suspended：connect to mail.abc.com[xxx.xxx.xx.xx]：Connection timed out”
• 退信提示：“550 5.7.1 Recipient not authorized, your IP has been found on a block list”
• 退信提示：“MAIL FROM： 550 5.0.0 Mail rejected due to possible SPAM。”
• 退信提示：“SMTP error, RCPT TO：550 rc：bl access denied。”
• 退信提示：“SMTP error, MAIL FROM：553 sorry, your envelope sender domain must exist”
• 退信提示：“550 abc@domain：mailbox limit exceeded (inreply to end of DATA command)”
• 退信提示报错 “DNS query error：abc.com”
• 发送邮件未成功投递，收到退信怎么办？
• 退信问题处理方式。