已经做了域名反解析，但给国外发邮件依然有问题请各位帮忙！
Thu 2008-03-13 20:10:42: From:
wliu@bplead.com
Thu 2008-03-13 20:10:42: To:
xxxx@ptc.com
Thu 2008-03-13 20:10:42: Subject: test
Thu 2008-03-13 20:10:42: Message-ID: <
200803132009279061614@bplead.com>
Thu 2008-03-13 20:10:42: 正在进行[ptc.com]的 MX-记录解析（DNS 服务器：202.106.0.20）...
Thu 2008-03-13 20:10:42: * P=030 S=002 D=ptc.com TTL=(81) MX=[irp1.ptc.com]
Thu 2008-03-13 20:10:42: * P=040 S=000 D=ptc.com TTL=(81) MX=[irp4.ptc.com]
Thu 2008-03-13 20:10:42: * P=060 S=001 D=ptc.com TTL=(81) MX=[relay4.ptc.com]
Thu 2008-03-13 20:10:42: Attempting MX: P=030 S=002 D=ptc.com TTL=(81) MX=[irp1.ptc.com]
Thu 2008-03-13 20:10:42: 试图 SMTP 连接到 [irp1.ptc.com : 25]
Thu 2008-03-13 20:10:42: 缓存命中于[irp1.ptc.com]; IP = [12.11.148.83]
Thu 2008-03-13 20:10:42: 等候连接...
Thu 2008-03-13 20:10:42: 已建立连接 (192.168.1.5 : 4722 -> 12.11.148.83 : 25)
Thu 2008-03-13 20:10:42: 等待协议初始化...
Thu 2008-03-13 20:10:42: <-- 554 irp1.ptc.com
Thu 2008-03-13 20:10:42: --> QUIT
Thu 2008-03-13 20:10:42: Attempting MX: P=040 S=000 D=ptc.com TTL=(81) MX=[irp4.ptc.com]
Thu 2008-03-13 20:10:42: 试图 SMTP 连接到 [irp4.ptc.com : 25]
Thu 2008-03-13 20:10:42: 缓存命中于[irp4.ptc.com]; IP = [12.11.148.86]
Thu 2008-03-13 20:10:42: 等候连接...
Thu 2008-03-13 20:10:43: 已建立连接 (192.168.1.5 : 4723 -> 12.11.148.86 : 25)
Thu 2008-03-13 20:10:43: 等待协议初始化...
Thu 2008-03-13 20:10:43: <-- 554 irp4.ptc.com
Thu 2008-03-13 20:10:43: --> QUIT
Thu 2008-03-13 20:10:43: Attempting MX: P=060 S=001 D=ptc.com TTL=(81) MX=[relay4.ptc.com]
Thu 2008-03-13 20:10:43: 试图 SMTP 连接到 [relay4.ptc.com : 25]
Thu 2008-03-13 20:10:43: 缓存命中于[relay4.ptc.com]; IP = [12.11.148.124]
Thu 2008-03-13 20:10:43: 等候连接...
Thu 2008-03-13 20:10:43: 已建立连接 (192.168.1.5 : 4724 -> 12.11.148.124 : 25)
Thu 2008-03-13 20:10:43: 等待协议初始化...
Thu 2008-03-13 20:10:43: <-- 554 relay4.ptc.com
Thu 2008-03-13 20:10:43: Socket connection closed by the other side (how rude!)
Thu 2008-03-13 20:10:43: SMTP 会话终止（in/out 字节： 56/12）
Thu 2008-03-13 20:10:43: ----------
