[求助][讨论]请教win2003 IIS6 SMTP发邮件问题

vkevinv

用WIN2003自带的ADO组件发送EMAIL,但发某些邮箱会产生退信,退信内容是:<br><br>
To: hr@kingenta.com<br>Subject: XXXXXXXXXXX！<br>Sent: Thu, 25 May 2006 16:36:20 +0800<br>
<br>
did not reach the following recipient(s):<br>
<br>
XXX@kingenta.com on Sat, 27 May 2006 18:24:15 +0800<br>无法在指定的时间限制内传递邮件。请重试或与管理员联系。<br><mail.email.XXXXX.COM#4.4.7><br>
<br>
maillog如下:<br>
2006-05-25 22:23:37 218.244.143.23 OutboundConnectionCommand SMTPSVC1 WESTHR-WEB1 - 25 RCPT - TO:<XXX@kingenta.com> 0 0 4 0 203 SMTP - - - -<br>
2006-05-25 22:23:37 218.244.143.23 OutboundConnectionResponse SMTPSVC1 WESTHR-WEB1 - 25 - - 250+Ok 0 0 6 0 250 SMTP - - - -<br>
2006-05-25 22:23:37 218.244.143.23 OutboundConnectionCommand SMTPSVC1 WESTHR-WEB1 - 25 DATA - - 0 0 4 0 250 SMTP - - - -<br>
2006-05-25 22:23:37 218.244.143.23 OutboundConnectionResponse SMTPSVC1 WESTHR-WEB1 - 25 - - 354+Start+mail+input;+end+with+<CRLF>.<CRLF> 0 0 44 0 296 SMTP - - - -<br>
<br>
到这一步就停掉了,没后续....<br>
正常的应该到quit 后结束才对.<br>
<br>
请问是什么原因?<img src="../leadbbsfile/UBBicon/em12.GIF" width=20 height=20 align=absmiddle border=0>