Qmail发送邮件别人却收不到，救命~~~~~~~~~`

greennet

求救！！！向公网信箱发送邮件提示成功，别人却收不到，我的信箱接收别人的邮件没问题。
邮件日志为：
Apr 26 06:29:08 MailServer qmail: 1082932148.821263 starting delivery 48: msg 2606082 to remote xjxjun@126.com
Apr 26 06:29:08 MailServer qmail: 1082932148.821392 status: local 0/10 remote 1/20
Apr 26 06:29:31 MailServer qmail: 1082932171.845477 starting delivery 49: msg 2606083 to remote xjxjun@126.com
Apr 26 06:29:31 MailServer qmail: 1082932171.845606 status: local 0/10 remote 2/20
Apr 26 06:29:48 MailServer qmail: 1082932188.901460 delivery 48: deferral: CNAME_lookup_failed_temporarily._(#4.4.3)/
Apr 26 06:29:48 MailServer qmail: 1082932188.901549 status: local 0/10 remote 1/20
Apr 26 06:30:00 MailServer qmail: 1082932200.938155 starting delivery 50: msg 2606084 to remote xjxjun@sohu.com
Apr 26 06:30:00 MailServer qmail: 1082932200.938287 status: local 0/10 remote 2/20
Apr 26 06:30:11 MailServer qmail: 1082932211.951453 delivery 49: deferral: CNAME_lookup_failed_temporarily._(#4.4.3)/
Apr 26 06:30:11 MailServer qmail: 1082932211.951544 status: local 0/10 remote 1/20
Apr 26 06:30:41 MailServer qmail: 1082932241.031490 delivery 50: deferral: CNAME_lookup_failed_temporarily._(#4.4.3)/
Apr 26 06:30:41 MailServer qmail: 1082932241.031622 status: local 0/10 remote 0/20
Apr 26 06:32:07 MailServer qmail: 1082932327.031312 starting delivery 51: msg 2606085 to remote xjxjun@sohu.com
Apr 26 06:32:07 MailServer qmail: 1082932327.031445 status: local 0/10 remote 1/20
Apr 26 06:32:07 MailServer qmail: 1082932327.031469 starting delivery 52: msg 2606085 to remote xjxjun@com.8fans.com
Apr 26 06:32:07 MailServer qmail: 1082932327.031489 status: local 0/10 remote 2/20
Apr 26 06:32:47 MailServer qmail: 1082932367.111734 delivery 51: deferral: CNAME_lookup_failed_temporarily._(#4.4.3)/


我是按照http://bbs.chinaunix.net/forum/viewtopic.php?t=160730&highlight=qmail来做的，安装过程一切顺利。请大侠帮帮忙，拜托了。
我QQ35001442

greennet

已经搞定了，原来是防火墙的原因