Vito Cavallo

I have setup a small internal network that connects to the Internet.
I am running Redhat 8 with all of the patches. I am NOT running DNS.
My computers have host names, addresses and host files. I can ping the
internal and external computers.
When I try to send a mail message, I get an error "hostname lookup failure".
What can be the problem? What am I missing? Does sendmail use the host
file? I have turned off all firewalls. I have seen others on the web with
this issue, but no resolution.

Thank you.

Andrzej Adam Filip

Vito Cavallo wrote:
> I have setup a small internal network that connects to the Internet.
> I am running Redhat 8 with all of the patches. I am NOT running DNS.
> My computers have host names, addresses and host files. I can ping the
> internal and external computers.
> When I try to send a mail message, I get an error "hostname lookup failure".
> What can be the problem? What am I missing? Does sendmail use the host
> file? I have turned off all firewalls. I have seen others on the web with
> this issue, but no resolution.

http://www.sendmail.org/faq/section3.html#3.22
Q3.22 -- How do I configure sendmail not to use DNS?

http://anfi.freeshell.org/sendmail/dialup10.html
Sendmail 8.10+ dial-up

DNS less Sendmail 8.12 requires modification in submit.mc [mentioned in
the second link]

--
Andrzej [pl>en: Andrew] Adam Filip http://anfi.freeshell.org/
anfi@priv.onet.pl anfi@xl.wp.pl
*Random Epigram* :
An egg thief becomes a camel thief.
-- Persian Proverb