為何這個IP不能進來寄信

jtain

我有設定 SMTP 之前 pop 5分鐘，但有個 user 就是不能寄信？
這個是我公司 user(username 跟 IP 我已經改過了)，他有先收信，然後要寄信就有錯誤

Tue 2007-08-21 13:08:50: Session 3307; child 1
Tue 2007-08-21 13:08:50: Accepting POP connection from [61.217.211.x: 1855]
Tue 2007-08-21 13:08:50: --> +OK instant.com.tw POP MDaemon 9.5.6 ready <[email protected]>
Tue 2007-08-21 13:08:50: <-- USER L24
Tue 2007-08-21 13:08:50: --> +OK SpamMail... User ok
Tue 2007-08-21 13:08:50: <-- PASS ******
Tue 2007-08-21 13:08:50: --> +OK [email protected]'s mailbox has 0 total messages (0 octets)
Tue 2007-08-21 13:08:50: <-- STAT
Tue 2007-08-21 13:08:50: --> +OK 0 0
Tue 2007-08-21 13:08:50: <-- QUIT
Tue 2007-08-21 13:08:50: --> +OK [email protected] instant.com.tw POP Server signing off (mailbox empty)
Tue 2007-08-21 13:08:50: POP session complete (Bytes in/out: 37/272)
Tue 2007-08-21 13:08:50: ----------
Tue 2007-08-21 13:08:55: Session 3308; child 22; thread 1608
Tue 2007-08-21 13:08:55: Accepting SMTP connection from [61.217.211.x : 1856]
Tue 2007-08-21 13:08:55: --> 220 instant.com.tw ESMTP MDaemon 9.5.6; Tue, 21 Aug 2007 13:08:55 +0800
Tue 2007-08-21 13:08:55: <-- HELO 7dd83560daba4dc
Tue 2007-08-21 13:08:55: Performing IP lookup (7dd83560daba4dc)
Tue 2007-08-21 13:08:55: *　Error: Name server reports domain name unknown
Tue 2007-08-21 13:08:55: ---- End IP lookup results
Tue 2007-08-21 13:08:55: --> 501 <7dd83560daba4dc> is invalid or DNS says does not exist
Tue 2007-08-21 13:08:55: SMTP session terminated (Bytes in/out: 22/134)

qiulingsnow

Performing IP lookup (7dd83560daba4dc)
Tue 2007-08-21 13:08:55: *　Error: Name server reports domain name unknown
Tue 2007-08-21 13:08:55: ---- End IP lookup results
Tue 2007-08-21 13:08:55: --> 501 <7dd83560daba4dc> is invalid or DNS says does not exist
Tue 2007-08-21 13:08:55: SMTP session terminated (Bytes in/out: 22/134)

你的日志已經說得很清楚了，是域名反向查詢的問題。

jtain

嗯！瞭解了

是反向查詢得全關....我怎麼記得我之前的設定沒有全關呢？