open relay test 會有不同的結果?

[jasoncash]

我有二台郵件主機，同樣用雷電，同樣的設定
怎麼會 test 會有不同的回覆訊息，有人可以教我這是什麼樣的差別嗎??

第一台
Testing 211.20.149.237...


Connecting to 211.20.149.237 ...
<<< 220 mail2.jasoncash.idv.tw Welcome to RaidenMAILD SMTP service v1901 (C)2001-2003
>>> HELO godfather.mob.net
<<< 250 ibu7guc4j4qws83
>>> MAIL FROM:
<<< 250 OpenRelayTester@mob.net Sender OK
>>> RCPT TO:
<<< 554 SMTP relay service does not allow your IP Address to relay mail to ConfirmedOpenRelay@mob.net

第二台
Connecting to 211.75.220.151 ...
<<< 220 jasoncash.idv.tw Welcome to RaidenMAILD SMTP service v1901 (C)2001-2003
>>> HELO godfather.mob.net
<<< 250 jasoncash
>>> MAIL FROM:
<<< 250 OpenRelayTester@mob.net Sender OK
>>> RCPT TO:
<<< 501 OpenRelayTester@mob.net Sender email is not in my domain
_________________
Jason
網站 http://www.jasoninfo.com.tw/
論壇 http://www.jasoninfo.org/snitz/