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- iRedMail 版本号：iRedMail-0.9.5-1
- 使用哪个数据库存储用户帐号（OpenLDAP，MySQL，PostgreSQL）：mysql
- 使用的 Linux/BSD 发行版名称及版本号：CentOS release 6.6 (Final)
- 与您的问题相关的日志信息：
Apr 16 16:52:29 mail postfix/error[59069]: D9024153B1D: to=<edianaabd@terra.com.br>, relay=none, delay=27196, delays=27040/156/0/0, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to vip-us-br-mx.terra.com[208.84.244.133]:25: Connection timed out)
Apr 16 16:52:29 mail postfix/error[59071]: DFB11151AF0: to=<pititavg@terra.com.br>, relay=none, delay=58631, delays=58515/115/0/0, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to vip-us-br-mx.terra.com[208.84.244.133]:25: Connection timed out)
Apr 16 16:52:29 mail postfix/pipe[58167]: 761881438A3: to=<qin.xiao@zzlgroup.com>, relay=dovecot, delay=0.07, delays=0.01/0.01/0/0.05, dsn=2.0.0, status=sent (delivered via dovecot service)
Apr 16 16:52:29 mail postfix/qmgr[2374]: DF73014C525: from=<mengyun.du@zzlgroup.com>, size=3754, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/error[59065]: DDE6B14D22F: to=<Meshermanlcsw@comcast.net>, relay=none, delay=28361, delays=28361/0.05/0/0, dsn=4.0.0, status=deferred (delivery temporarily suspended: host mx1.comcast.net[96.114.157.80] refused to talk to me: 554 resimta-po-14v.sys.comcast.net resimta-po-14v.sys.comcast.net 103.20.248.231 Comcast requires that all mail servers must have a PTR record with a valid Reverse DNS entry. Currently your mail server does not fill that requirement. For more information, refer to:
Apr 16 16:52:29 mail postfix/error[58901]: D3AA5148322: to=<vguerra1@terra.com.br>, relay=none, delay=266564, delays=266564/0.06/0/0, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to vip-us-br-mx.terra.com[208.84.244.133]:25: Connection timed out)
Apr 16 16:52:29 mail postfix/qmgr[2374]: 761881438A3: removed
Apr 16 16:52:29 mail postfix/qmgr[2374]: DFB2D146A62: from=<cheng.yao@zzlgroup.com>, size=2238, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/error[59072]: DFA76150F22: to=<ronrv@comcast.net>, relay=none, delay=149306, delays=149306/0.01/0/0, dsn=4.0.0, status=deferred (delivery temporarily suspended: host mx1.comcast.net[96.114.157.80] refused to talk to me: 554 resimta-po-14v.sys.comcast.net resimta-po-14v.sys.comcast.net 103.20.248.231 Comcast requires that all mail servers must have a PTR record with a valid Reverse DNS entry. Currently your mail server does not fill that requirement. For more information, refer to:
Apr 16 16:52:29 mail postfix/qmgr[2374]: D576014C470: from=<qin.xiao@zzlgroup.com>, size=1736, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: D2FB0156450: from=<cheng.yao@zzlgroup.com>, size=1584, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: D120C142980: from=<jun.yao@zzlgroup.com>, size=1176, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: DFF37151DB8: from=<quntai@zzlgroup.com>, size=3798, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: DFAA814CDCF: from=<qin.xiao@zzlgroup.com>, size=1750, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: DE6FD1467F8: from=<quntai@zzlgroup.com>, size=1398, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: DB3E01507CD: from=<cheng.yao@zzlgroup.com>, size=4412, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: DE012159ACC: from=<quntai@zzlgroup.com>, size=1434, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: D2B30141B88: from=<qin.xiao@zzlgroup.com>, size=1082, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: D88851509AE: from=<cheng.yao@zzlgroup.com>, size=3569, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: DBF9615553F: from=<yu.wang@zzlgroup.com>, size=1092, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: DED151491C8: from=<jun.yao@zzlgroup.com>, size=1338, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: D71F815CDE3: from=<quntai@zzlgroup.com>, size=1622, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: DCA4515117C: from=<quntai@zzlgroup.com>, size=1656, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: D8767155523: from=<mengyun.du@zzlgroup.com>, size=1360, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: DFD2B149547: from=<yu.wang@zzlgroup.com>, size=4051, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: D4BB815AD5E: from=<cheng.yao@zzlgroup.com>, size=1659, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: DC456154BEF: from=<jun.yao@zzlgroup.com>, size=2267, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: D44F214631C: from=<jun.yao@zzlgroup.com>, size=1214, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: DAF0E154265: from=<cheng.yao@zzlgroup.com>, size=1669, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: D9C5E1529C9: from=<mengyun.du@zzlgroup.com>, size=1081, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: DB1DA140B94: from=<jun.yao@zzlgroup.com>, size=1201, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: DBF4B14827D: from=<quntai@zzlgroup.com>, size=3527, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: DC016153A7D: from=<jun.yao@zzlgroup.com>, size=1276, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: DC68D146ADC: from=<qin.xiao@zzlgroup.com>, size=1634, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: D9246149A46: from=<quntai@zzlgroup.com>, size=1873, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/qmgr[2374]: DEE4914FDC3: from=<qin.xiao@zzlgroup.com>, size=1625, nrcpt=1 (queue active)
Apr 16 16:52:29 mail postfix/smtp[53579]: 33874140D20: host itc-edge1.mums.ac.ir[185.116.24.167] refused to talk to me: 550 5.5.0 550 5.7.1 IP address refused. To find the reputation of this IP address, visit
Apr 16 16:52:29 mail postfix/cleanup[58925]: E2C611468D2: message-id=<5UD56PQ0NRHV8GBW0VA8Z9BQ0DA3N23ZGU3BSZUM@6FFBU5TC9NUP1X7.namprd20.prod.outlook.com>
Apr 16 16:52:30 mail postfix/smtp[53083]: 013D414DCC7: to=<creed@sheffieldhaworth.com>, relay=eu-smtp-inbound-2.mimecast.com[195.130.217.241]:25, delay=1925, delays=0.73/1908/15/0.74, dsn=5.0.0, status=bounced (host eu-smtp-inbound-2.mimecast.com[195.130.217.241] said: 550 Invalid Recipient - [waEu_HtZMGG1NmgOpUQf1Q.uk158] (in reply to RCPT TO command))
Apr 16 16:52:30 mail postfix/smtp[44384]: connect to seninnsport.berlin.de[5.39.246.37]:25: Connection timed out
Apr 16 16:52:30 mail postfix/smtp[44384]: 34AE9147F0D: to=<toni.fingerle@seninnsport.berlin.de>, relay=none, delay=166590, delays=164620/1924/46/0, dsn=4.4.1, status=deferred (connect to seninnsport.berlin.de[5.39.246.37]:25: Connection timed out)
Apr 16 16:52:30 mail postfix/qmgr[2374]: D2417148AA5: from=<jun.yao@zzlgroup.com>, size=1383, nrcpt=1 (queue active)
Apr 16 16:52:30 mail postfix/smtp[54653]: 3A2E9154F9C: host mx.unige.ch[129.194.9.232] refused to talk to me: 554-lunimx2.unige.ch 554 Your access to this mail system has been rejected due to the sending MTA's poor reputation or unauthorized access. If you believe that this failure is in error, please contact the intended recipient via alternate means.
Apr 16 16:52:30 mail postfix/smtps/smtpd[56489]: connect from unknown[172.18.0.1]
Apr 16 16:52:30 mail postfix/smtps/smtpd[56489]: setting up TLS connection from unknown[172.18.0.1]
Apr 16 16:52:30 mail postfix/smtp[53579]: 33874140D20: to=<mohararif1@mums.ac.ir>, relay=itc-edge2.mums.ac.ir[185.116.24.168]:25, delay=126319, delays=124369/1922/29/0, dsn=4.5.0, status=deferred (host itc-edge2.mums.ac.ir[185.116.24.168] refused to talk to me: 550 5.5.0 550 5.7.1 IP address refused. To find the reputation of this IP address, visit .)
Apr 16 16:52:30 mail postfix/qmgr[2374]: D610A159899: from=<jun.yao@zzlgroup.com>, size=2166, nrcpt=1 (queue active)
Apr 16 16:52:30 mail postfix/smtp[52124]: 12DFC145E82: to=<sydni.thurman@gmail.com>, relay=alt1.gmail-smtp-in.l.google.com[108.177.9.26]:25, delay=1962, delays=4.7/1924/32/0.93, dsn=5.7.28, status=bounced (host alt1.gmail-smtp-in.l.google.com[108.177.9.26] said: 550-5.7.28 [103.20.248.231       1] Our system has detected an unusual rate of 550-5.7.28 unsolicited mail originating from your IP address. To protect our 550-5.7.28 users from spam, mail sent from your IP address has been blocked. 550-5.7.28 Please visit 550-5.7.28   to review our 550 5.7.28 Bulk Email Senders Guidelines. i25si8117554oob.39 - gsmtp (in reply to end of DATA command))
Apr 16 16:52:30 mail postfix/cleanup[58928]: 8E34C141663: message-id=<20200416085230.8E34C141663@mail.fintecher.cn>
Apr 16 16:52:30 mail postfix/bounce[58373]: 12DFC145E82: sender non-delivery notification: 8E34C141663
Apr 16 16:52:30 mail postfix/qmgr[2374]: 12DFC145E82: removed
Apr 16 16:52:30 mail postfix/qmgr[2374]: D8C2714476D: from=<yu.wang@zzlgroup.com>, size=1619, nrcpt=1 (queue active)
Apr 16 16:52:30 mail postfix/cleanup[58925]: 9BAAA1411DA: message-id=<20200416085230.9BAAA1411DA@mail.fintecher.cn>
Apr 16 16:52:30 mail postfix/bounce[58374]: 013D414DCC7: sender non-delivery notification: 9BAAA1411DA
Apr 16 16:52:30 mail postfix/qmgr[2374]: 013D414DCC7: removed
Apr 16 16:52:30 mail postfix/qmgr[2374]: E2C611468D2: from=<mengyun.du@zzlgroup.com>, size=1587, nrcpt=1 (queue active)
Apr 16 16:52:30 mail postfix/smtp[50499]: connect to aspmx.l.google.com[2404:6800:4008:c04::1b]:25: Network is unreachable
Apr 16 16:52:30 mail postfix/smtp[52445]: 304D1147F98: to=<luiz_bellini@uol.com.br>, relay=mx.uol.com.br[200.147.36.15]:25, delay=106886, delays=104973/1910/1.5/0.51, dsn=4.7.1, status=deferred (host mx.uol.com.br[200.147.36.15] said: 450 4.7.1 Client host rejected: cannot find your hostname, [103.20.248.231] (in reply to RCPT TO command))
Apr 16 16:52:31 mail postfix/smtps/smtpd[56489]: Anonymous TLS connection established from unknown[172.18.0.1]: TLSv1.2 with cipher DHE-RSA-AES128-GCM-SHA256 (128/128 bits)
Apr 16 16:52:31 mail postfix/qmgr[2374]: DB48F1564EB: from=<qin.xiao@zzlgroup.com>, size=1888, nrcpt=1 (queue active)
Apr 16 16:52:31 mail postfix/smtps/smtpd[54828]: 60130141117: client=unknown[172.18.0.1], sasl_method=PLAIN, sasl_username=cheng.yao@zzlgroup.com
Apr 16 16:52:31 mail postfix/smtp[56833]: 3A05414354B: to=<david@vacationcars.biz>, relay=hermes.hosts.co.uk[85.233.160.21]:25, delay=316353, delays=313429/2317/606/0, dsn=4.4.2, status=deferred (conversation with hermes.hosts.co.uk[85.233.160.21] timed out while receiving the initial server greeting)
Apr 16 16:52:31 mail postfix/qmgr[2374]: 9BAAA1411DA: from=<>, size=6023, nrcpt=1 (queue active)
Apr 16 16:52:31 mail postfix/smtp[50499]: setting up TLS connection to aspmx.l.google.com[64.233.188.27]:25
Apr 16 16:52:31 mail postfix/pipe[57881]: 9BAAA1411DA: to=<yu.wang@zzlgroup.com>, relay=dovecot, delay=0.87, delays=0.78/0/0/0.09, dsn=2.0.0, status=sent (delivered via dovecot service)
Apr 16 16:52:31 mail postfix/qmgr[2374]: 9BAAA1411DA: removed
Apr 16 16:52:31 mail postfix/qmgr[2374]: 8E34C141663: from=<>, size=4472, nrcpt=1 (queue active)
Apr 16 16:52:31 mail postfix/pipe[58166]: 8E34C141663: to=<quntai@zzlgroup.com>, relay=dovecot, delay=0.94, delays=0.93/0/0/0.02, dsn=2.0.0, status=sent (delivered via dovecot service)
Apr 16 16:52:31 mail postfix/qmgr[2374]: 8E34C141663: removed
Apr 16 16:52:31 mail postfix/qmgr[2374]: DBF25154C34: from=<quntai@zzlgroup.com>, size=1027, nrcpt=1 (queue active)
Apr 16 16:52:31 mail postfix/smtp[50499]: Trusted TLS connection established to aspmx.l.google.com[64.233.188.27]:25: TLSv1.2 with cipher ECDHE-ECDSA-AES128-GCM-SHA256 (128/128 bits)
====

现在的情况就是内部发送任何邮件，接收到需要过很长一段时间才能接收到