From owner-freebsd-questions  Wed Feb  3 05:45:22 1999
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Date: Wed, 3 Feb 1999 21:49:17 +0800 (CST)
Message-Id: <199902031349.VAA26678@sparc3.cc.ncku.edu.tw>
To: freebsd-questions@FreeBSD.ORG
Subject: problem about sendmail
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Dear, Sir,
I have a mail problem, and I use the Freebsd 3.0 Release and sendmail 8.9.1.
The DNS of my computer is rpv.iaa.ncku.edu.tw, and I do not have a DNS server.
On the other computer I can ping the computer rpv, so I think the DNS is O.K.
When I send a mail to xxx@sparc3.cc.ncku.edu.tw , it fails. 
And I cannot receive the mail from it. From the maillog, it tells me the message below:

Feb  4 13:08:46 rpv sendmail[1336]: NAA01334:
 to=<xxx@sparc1.cc.ncku.edu.tw>, ctladdr=<xxx@rpv.iaa.ncku.edu.tw>
 (1000/1000), delay=00:03:49, xdelay=00:03:48, mailer=esmtp,
 relay=sparc1.cc.ncku.edu.tw. [140.116.5.1]  stat=Deferred: 451
 <xxx@rpv.iaa.ncku.edu.tw>... unresolvable relay host name
 [140.116.202.142],check your setup.
But I do not know where to check my setup. 
On the other hand, when I send a mail to xxx.bbs@vlsi1.iie.ncku.edu.tw or xxx@yahoo.com. I find it is O.K., no mater send or receiver.
I get the conclusion that some places I can send and receiver, but some cannot.
Can you help me get the answer to solve this problem? 
Because I use the 2.2.7 before, I never had this problem before.
Now I change to the 3.0 Release, the problem happens.
I have change the /etc/relay-domains file.
Please help me. Thank you.

Sincerely,
     Kuo-Chun Fan


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