邮件发送的错误(反向查询有关的)

arvan

Sat 2006-03-18 00:24:14: Session 17; child 1; thread 716 <br>
Sat 2006-03-18 00:24:14: Accepting SMTP connection from [61.178.31.93 : 1775] <br>
Sat 2006-03-18 00:24:14: Performing PTR lookup (93.31.178.61.IN-ADDR.ARPA) <br>
Sat 2006-03-18 00:24:14: * Error: Name server reports domain name unknown <br>
Sat 2006-03-18 00:24:14: ---- End PTR results <br>
Sat 2006-03-18 00:24:14: --> 220 xxxx.com ESMTP MDaemon 8.1.4; Sat, 18 Mar 2006 00:24:14 +0800 <br>
Sat 2006-03-18 00:24:14: SMTP session terminated (Bytes in/out: 0/0) <br>
Sat 2006-03-18 00:24:14: ---------- <br>
Sat 2006-03-18 00:26:22: Session 19; child 1; thread 716 <br>
Sat 2006-03-18 00:26:22: Accepting SMTP connection from [61.178.31.93 : 1569] <br>
Sat 2006-03-18 00:26:22: --> 220 xxxx.com ESMTP MDaemon 8.1.4; Sat, 18 Mar 2006 00:26:22 +0800 <br>
Sat 2006-03-18 00:26:22: SMTP session terminated (Bytes in/out: 0/0) <br>
Sat 2006-03-18 00:26:22: ---------- <br>
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请问,该如何设置反向查询?<br>

lgj858

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