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Sendmail+DNS problem: Host Name Lookup Failure

Sendmail+DNS problem: Host Name Lookup Failure

Post by <sha.. » Thu, 20 Jan 2000 04:00:00



I am trying to setup an intranet in which Email servers running on
Red Hat 6.0 are situated in different cities and are connected thru
leased lines. Each server offers ppp dial-up connectivity to hosts
running Windows95/98/NT.

Now the problem is that i think DNS is working fine as nslookup is giving
correct results. but sendmail is not relaying email. the error i get in the
/var/log/maillog file is:

...."Stat-Deferred ..Host Name Lookup Failure"

The root account gets email telling him of 'Local Configuration Error..'

Please help me out here...will installing qmail instead of sendmail resolve
the problem....??

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Sendmail+DNS problem: Host Name Lookup Failure

Post by Andrzej Fili » Fri, 21 Jan 2000 04:00:00



> I am trying to setup an intranet in which Email servers running on
> Red Hat 6.0 are situated in different cities and are connected thru
> leased lines. Each server offers ppp dial-up connectivity to hosts
> running Windows95/98/NT.

> Now the problem is that i think DNS is working fine as nslookup is giving
> correct results. but sendmail is not relaying email. the error i get in the
> /var/log/maillog file is:

> ...."Stat-Deferred ..Host Name Lookup Failure"

> The root account gets email telling him of 'Local Configuration Error..'

> Please help me out here...will installing qmail instead of sendmail resolve
> the problem....??

http://www.sendmail.org/faq/section3.html#3.22
How do I configure sendmail not to use DNS?

http://www.sendmail.org/faq/section4.html#4.5
How can I solve "MX list for hostname points back to hostname"
and "config error: mail loops back to myself" messages?

--
Andrzej (Andrew) A. Filip - Warsaw, Poland | http://bigfoot.com/~anfi

Postings: http://deja.com/profile.xp?author=Andrzej%20Filip

 
 
 
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1. Sendmail 8.7.5 and Linux 2.0.20 (host name lookup failure)

Hi,

I'am Massimiliano Panichi. I have a problem
with my sendmail deamon. I have a private
LAN, with no access to Internet. When I try to
send an e-mail message to another user on
another host in the LAN, the deamon doesn't work.
It give me an error. HOST NAME LOOKUP FAILURE.

I don't understand this error message because the
computer have all the host information in the
local /etc/hosts file. It try a DNS server to lookup the name
and it don't receive answer because it doesn' t exist. After
this it should see in the /etc/hosts file to find the
IP address. I use Linux 2.0.20 and Sendmail 8.7.5.

Please help me!

Massimiliano

--
Eng. Massimiliano Panichi
via Ronco Corto 4
50143 Florence (Italy)
Tel +39-55-7321963


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