最新资讯_专业邮件中继，反垃圾网关，海外邮件中继，邮件中继转发服务，邮件中继服务器

·550 You are blacklisted	[2016-5-26]
·421 Sorry, SMTP server too busy right now (90) try again later	[2016-5-26]
·weekly report病毒邮件泛滥	[2016-5-26]
·550 JunkMail rejected 121.50.xx.xx is in an RBL on rbl.websitewelcome.com	[2016-5-26]
·550 The host name specified in HELO does not match IP address	[2016-5-26]
·550 5.7.1 Our system has detected that this message is likely unsolicited mail	[2016-5-26]
·421 4.7.1 Intrusion prevention active for	[2016-5-26]
·554 Rejected due to the sending MTA's poor reputation	[2016-5-26]
·553 We have reason to believe this mail is spam	[2016-5-26]
·550 5.5.0 121.50.xx.xx is blacklisted by FortiGuard	[2016-5-26]
·554 Reject by behaviour spamantispam_bat	[2016-5-26]
·550 5.7.1 Client host rejected: Your message was rejected due to spam filtering	[2016-5-26]
·550 relaying denied for lightinginfo@yahoo.cn	[2016-5-26]
·550 Unrouteable address	[2016-5-25]
·543 involves illegal information	[2016-5-24]
·553 host denies relay (umail mta)	[2016-5-24]
·553 5.1.3 ... Invalid route address	[2016-5-24]
·554 refused, spam message	[2016-5-24]
·550 RC:NE yao@czrulu.com The email account does not exist	[2016-5-23]
·550 5.7.1 Service unavailable, Client host blocked using Spamhaus	[2016-5-23]
·550 No RDNS entry for	[2016-5-23]
·550 the account is disable	[2016-5-23]
·553 sorry, your domain mismatches client IP. Server rejected.	[2016-5-23]
·免费邮箱申请，逐步走向规范路！	[2016-5-22]
·550 Mail rejected	[2016-5-22]
·452-4.2.2 The email account that you tried to reach is over quota	[2016-5-22]
·550 Remote host is in blacklist	[2016-5-21]
·550 5.7.1 Mailbox unavailable. No reverse name (PTR) for your sender IP	[2016-5-20]
·554 delivery error: dd This user doesn't have a	[2016-5-20]
·550 Mail content denied	[2016-5-20]

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