发送邮件出现如下问题，求救。。。

南宫问天

领导出差，在外地用outlook发送邮件出现如下错误...反复查了几遍服务器设置都没查出来问题..


Mon 2006-10-09 21:54:11: Session 1504; child 1; thread 988
Mon 2006-10-09 21:54:01: Accepting SMTP connection from [220.232.171.8 : 51869]
Mon 2006-10-09 21:54:01: Performing PTR lookup (8.171.232.220.IN-ADDR.ARPA)
Mon 2006-10-09 21:54:01: *  D=8.171.232.220.IN-ADDR.ARPA TTL=(1340) PTR=[wcdcip8.systechtelecom.net]
Mon 2006-10-09 21:54:01: *  Gathering A records...
Mon 2006-10-09 21:54:01: *  D=wcdcip8.systechtelecom.net TTL=(1340) A=[220.232.171.8]
Mon 2006-10-09 21:54:01: ---- End PTR results
Mon 2006-10-09 21:54:01: --> 220 mail.toplight.net ESMTP MDaemon 8.1.3; Mon, 09 Oct 2006 21:54:01 +0800
Mon 2006-10-09 21:54:02: <-- EHLO mail.systechtelecom.net
Mon 2006-10-09 21:54:02: Performing IP lookup (mail.systechtelecom.net)
Mon 2006-10-09 21:54:02: *  D=mail.systechtelecom.net TTL=(1340) A=[220.232.171.8]
Mon 2006-10-09 21:54:02: ---- End IP lookup results
Mon 2006-10-09 21:54:02: --> 250-mail.xxxx.net Hello wcdcip8.systechtelecom.net, pleased to meet you
Mon 2006-10-09 21:54:02: --> 250-ETRN
Mon 2006-10-09 21:54:02: --> 250-AUTH=LOGIN
Mon 2006-10-09 21:54:02: --> 250-AUTH LOGIN CRAM-MD5
Mon 2006-10-09 21:54:02: --> 250-8BITMIME
Mon 2006-10-09 21:54:02: --> 250 SIZE 0
Mon 2006-10-09 21:54:03: <-- MAIL FROM:<macro@mail.xxxx.net> SIZE=1621
Mon 2006-10-09 21:54:03: Performing IP lookup (mail.toplight.net)
Mon 2006-10-09 21:54:03: *  D=mail.toplight.net TTL=(60) A=[192.168.0.102]
Mon 2006-10-09 21:54:03: ---- End IP lookup results
Mon 2006-10-09 21:54:03: --> 250 <macro@mail.xxxx.net>, Sender ok
Mon 2006-10-09 21:54:04: <-- RCPT TO:<Duncan@mail.xxxx.net>
Mon 2006-10-09 21:54:04: --> 530 Authentication required
Mon 2006-10-09 21:54:05: <-- RCPT TO:<ariel@mail.xxxx.net>
Mon 2006-10-09 21:54:05: --> 530 Authentication required
Mon 2006-10-09 21:54:08: <-- RCPT TO:<finance@mail.xxxx.net>
Mon 2006-10-09 21:54:08: --> 530 Authentication required
Mon 2006-10-09 21:54:08: <-- RCPT TO:<lily@mail.xxxx.net>
Mon 2006-10-09 21:54:08: --> 530 Authentication required
Mon 2006-10-09 21:54:09: <-- RSET
Mon 2006-10-09 21:54:09: --> 250 RSET? Well, ok.
Mon 2006-10-09 21:54:11: <-- QUIT
Mon 2006-10-09 21:54:11: --> 221 See ya in cyberspace
Mon 2006-10-09 21:54:11: SMTP session terminated (Bytes in/out: 231/435)
Mon 2006-10-09 21:54:11: ----------

your615

俺也遇到过，
我是在新加坡时用时发现这种问题，在其他地方都正常，