451 MX service temporarily unavailable 错误求助

wollam

--- Session Transcript ---
Sat 2007-12-15 15:14:42: Parsing Message <xxxxxxxxxxxxxxxxxxxxxxxx\pd90000054085.msg>
Sat 2007-12-15 15:14:42: From: XXXXX@wollamgroup.com
Sat 2007-12-15 15:14:42: To: XXXXX@asg-avia.com
Sat 2007-12-15 15:14:42: Subject: Re: S-I for Relzbach
Sat 2007-12-15 15:14:42: Message-ID: <01af01c83e18$fc0f56a0$4300a8c0@legendcl3sqdq9>
Sat 2007-12-15 15:14:42: [asg-avia.com]5D MX-record =bNvRQTZ=xPP(DNS 7~Nq: 202.96.104.16)...
Sat 2007-12-15 15:14:43: P=090 D=asg-avia.com TTL=(180) MX=[mailhost.xohost.com]
Sat 2007-12-15 15:14:43: P=080 D=asg-avia.com TTL=(180) MX=[mail2.asg-avia.com] {67.107.129.148}
Sat 2007-12-15 15:14:43: P=020 D=asg-avia.com TTL=(180) MX=[mail.asg-avia.com] {12.28.138.148}
Sat 2007-12-15 15:14:43: Attempting MX: P=020 D=asg-avia.com TTL=(180) MX=[mail.asg-avia.com] {12.28.138.148}
Sat 2007-12-15 15:14:43: U}TZJTM< SMTP A,=S5= [12.28.138.148 : 25]
Sat 2007-12-15 15:14:43: 5H:r socket A,=S...
Sat 2007-12-15 15:14:43: Socket A,=S=(A"(192.168.0.250 : 1612 -> 12.28.138.148 : 25)
Sat 2007-12-15 15:14:43: 5H:rP-Ri3uJ<;/...
Sat 2007-12-15 15:15:12: 30 Ck5H:rP-Ri, A,=S3,J1J1<dRQ5=!#
Sat 2007-12-15 15:15:12: Attempting MX: P=080 D=asg-avia.com TTL=(180) MX=[mail2.asg-avia.com] {67.107.129.148}
Sat 2007-12-15 15:15:12: U}TZJTM< SMTP A,=S5= [67.107.129.148 : 25]
Sat 2007-12-15 15:15:12: 5H:r socket A,=S...
Sat 2007-12-15 15:15:33: Winsock Error 10060 A,=S3,J1!#
Sat 2007-12-15 15:15:33: Attempting MX: P=090 D=asg-avia.com TTL=(180) MX=[mailhost.xohost.com]
Sat 2007-12-15 15:15:33: U}TZJTM< SMTP A,=S5= [mailhost.xohost.com : 25]
Sat 2007-12-15 15:15:33: [mailhost.xohost.com]A-record =bNvRQTZ=xPP(DNS 7~NqFw: 202.96.104.16)...
Sat 2007-12-15 15:15:35: D=mailhost.xohost.com TTL=(15) A=[207.155.248.118]
Sat 2007-12-15 15:15:35: U}TZJTM< SMTP A,=S5= [207.155.248.118 : 25]
Sat 2007-12-15 15:15:35: 5H:r socket A,=S...
Sat 2007-12-15 15:15:35: Socket A,=S=(A"(192.168.0.250 : 1636 -> 207.155.248.118 : 25)
Sat 2007-12-15 15:15:35: 5H:rP-Ri3uJ<;/...
Sat 2007-12-15 15:15:36: <-- 220 isis.xo.com [ConcentricHost ESMTP MX 4.0] ready
Sat 2007-12-15 15:15:36: --> EHLO wollamgroup.com
Sat 2007-12-15 15:15:36: <-- 250-isis.xo.com
Sat 2007-12-15 15:15:36: <-- 250-SIZE 20972544
Sat 2007-12-15 15:15:36: <-- 250 8BITMIME
Sat 2007-12-15 15:15:36: --> MAIL From:<XXXXX@wollamgroup.com> SIZE=14351
Sat 2007-12-15 15:15:37: <-- 250 Sender OK
Sat 2007-12-15 15:15:37: --> RCPT To:<XXXXX@asg-avia.com>
Sat 2007-12-15 15:15:39: <-- 451 <XXXXX@asg-avia.com>: Recipient address rejected: MX service temporarily unavailable
Sat 2007-12-15 15:15:39: --> QUIT

MX 服务暂时不可用，请问如何解决？