最近丫的发现umail太操蛋了，一个客户邮件相当的巨大，但是使用了umail加中继后就经常出现一些莫名其妙的问题，是其他邮件系统没有碰到过的。死队列，坏队列，循环队列等等。

uamil邮件延迟队列堵住问题邮件中继

The attached message had transient non-fatal delivery errors
THIS IS A WARNING MESSAGE ONLY – YOU DO NOT NEED TO RESEND YOUR MESSAGE!
This server is configured to automatically retry delivery at configured
intervals. Subsequent attempts to deliver this message are pending.
— Session Transcript —
Mon 2013-10-28 14:37:52: Parsing message <xxxxxxxxxxxxxxxxxxxxxx\pd35000168869.msg>
Mon 2013-10-28 14:37:52: * From: winni.wang@email-cm.com
Mon 2013-10-28 14:37:52: * To: r.thoma@tse-mail.com
Mon 2013-10-28 14:37:52: * Subject: pls confirm the PI
Mon 2013-10-28 14:37:52: * Message-ID: 201310281343222820128@email-cm.com
Mon 2013-10-28 14:37:52: * Route slip host: tse-mail.com
Mon 2013-10-28 14:37:52: * Route slip port: 25
Mon 2013-10-28 14:37:52: Attempting SMTP connection to [tse-mail.com]
Mon 2013-10-28 14:37:52: Resolving MX records for [tse-mail.com] (DNS Server: 8.8.8.8)…
Mon 2013-10-28 14:37:52: * P=100 S=000 D=tse-mail.com TTL=(283) MX=[mail2.cosmik.net]
Mon 2013-10-28 14:37:52: Attempting SMTP connection to [mail2.cosmik.net:25]
Mon 2013-10-28 14:37:52: * Cache hit on mail2.cosmik.net; IP = 80.242.151.19
Mon 2013-10-28 14:37:52: Waiting for socket connection…
Mon 2013-10-28 14:37:52: * Connection established (127.0.0.1:2952 -> 80.242.151.19:25)
Mon 2013-10-28 14:37:52: Waiting for protocol to start…
Mon 2013-10-28 14:37:55: EHLO mail.email-cm.com
Mon 2013-10-28 14:37:55: Mon 2013-10-28 14:37:55: Mon 2013-10-28 14:37:55: Mon 2013-10-28 14:37:55: Mon 2013-10-28 14:37:55: Mon 2013-10-28 14:37:55: Mon 2013-10-28 14:37:55: Mon 2013-10-28 14:37:55: Mon 2013-10-28 14:37:55: STARTTLS
Mon 2013-10-28 14:37:59: EHLO mail.email-cm.com
Mon 2013-10-28 14:38:08: Mon 2013-10-28 14:38:08: Mon 2013-10-28 14:38:08: Mon 2013-10-28 14:38:08: Mon 2013-10-28 14:38:08: Mon 2013-10-28 14:38:08: Mon 2013-10-28 14:38:08: Mon 2013-10-28 14:38:08: MAIL From:winni.wang@email-cm.com SIZE=241778
Mon 2013-10-28 14:38:08: … Sender ok
Mon 2013-10-28 14:38:08: –> RCPT To:<dr.m.amin@tse-mail.com>
Mon 2013-10-28 14:38:11: … Recipient ok
Mon 2013-10-28 14:38:11: –> RCPT To:<r.thoma@tse-mail.com>
Mon 2013-10-28 14:38:24: … Recipient ok
Mon 2013-10-28 14:38:24: –> DATA
Mon 2013-10-28 14:38:25: Mon 2013-10-28 14:38:25: Sending <xxxxxxxxxxxxxxxxxxxxxx\pd35000168869.msg> to [80.242.151.19]
Mon 2013-10-28 15:11:54: Connection timed out!
Mon 2013-10-28 15:11:54: This message is 85 minutes old; it has 0 minutes left in this queue
Mon 2013-10-28 15:11:54: Remote queue lifetime exceeded; message placed in retry queue
— End Transcript —