Article View: comp.mail.sendmail
Article #2759Re: Unknown Host Error
From: Marion Hakanson
Date: Tue, 09 Aug 1988 00:15
Date: Tue, 09 Aug 1988 00:15
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1478 bytes
In article <277@hal.UUCP> ane@hal.cwru.edu (Aydin "Bif" Edguer) writes:
>Environment:
>I am currently running sendmail 5.59 on a VAX 11/750 under 4.3 BSD.
>I am also running named 4.8.
>. . .
>Fact:
>I do not understand how named and sendmail can resolve the name AND the
>host still be UNKNOWN!
>Verified by this posting :-)
>. . .
>Aydin Edguer
>ane@hal.cwru.edu
This rather surprising behavior can occur when (for example) someone has
an MX record pointing to an unknown host. Sendmail reports the original
destination host as being unknown, when it is actually the MX-er which
cannot be resolved. Get into nslookup, "set type=MX" and look at what
MX records exist for that host. To find the offender, "set type=A" and
try each of the MX hosts shown above. Needless to say, a better diagnostic
from sendmail would be greatly appreciated.
--
Marion Hakanson Domain: hakanson@cs.orst.edu
UUCP : {hp-pcd,tektronix}!orstcs!hakanson
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<5951@orstcs.CS.ORST.EDU>Path:
arc1-ca.pugleaf.net!utzoo!utgpu!attcan!uunet!husc6!bbn!uwmcsd1!leah!bingvaxu!sunybcs!rutgers!orstcs!mist!hakansonReferences:
<277@hal.UUCP>Show Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!attcan!uunet!husc6!bbn!uwmcsd1!leah!bingvaxu!sunybcs!rutgers!orstcs!mist!hakanson From: hakanson@mist.cs.orst.edu (Marion Hakanson) Newsgroups: comp.mail.sendmail Subject: Re: Unknown Host Error Message-ID: <5951@orstcs.CS.ORST.EDU> Date: 9 Aug 88 00:15:26 GMT References: <277@hal.UUCP> Sender: netnews@orstcs.CS.ORST.EDU Reply-To: hakanson@mist.CS.ORST.EDU (Marion Hakanson) Organization: Oregon State University - CS - Corvallis, Oregon Lines: 25