[Mail] Qmail 发不出信。帖上LOG大家帮忙看下。

[weixin_38051538]

Nov 18 19:10:51 localhost qmail: 1132312251.484032 status: exiting
Nov 18 19:12:54 localhost qmail: 1132312374.767662 status: local 0/10 remote 0/20
Nov 18 19:12:54 localhost smtpd: 1132312374.770242 tcpserver: status: 0/40
Nov 18 19:12:54 localhost pop3d: 1132312374.775112 tcpserver: status: 0/100
Nov 18 19:14:21 localhost qmail: 1132312461.614250 new msg 208614
Nov 18 19:14:21 localhost qmail: 1132312461.614316 info msg 208614: bytes 472 from <[e-mail]> qp 4695 uid 99
Nov 18 19:14:21 localhost qmail: 1132312461.689232 starting delivery 1: msg 208614 to remote [e-mail]
Nov 18 19:14:21 localhost qmail: 1132312461.689298 status: local 0/10 remote 1/20
Nov 18 19:14:21 localhost qmail: 1132312461.691564 delivery 1: deferral: CNAME_lookup_failed_temporarily._(#4.4.3)/
Nov 18 19:14:21 localhost qmail: 1132312461.691608 status: local 0/10 remote 0/20
Nov 18 19:14:48 localhost qmail: 1132312488.690714 starting delivery 2: msg 209322 to remote [e-mail]
Nov 18 19:14:48 localhost qmail: 1132312488.690783 status: local 0/10 remote 1/20
Nov 18 19:14:48 localhost qmail: 1132312488.693115 delivery 2: deferral: CNAME_lookup_failed_temporarily._(#4.4.3)/
Nov 18 19:14:48 localhost qmail: 1132312488.693161 status: local 0/10 remote 0/20


能收到信。但是发不出，本域收发都可以。
CNAME_lookup_failed_temporarily是什么意思？？