[rhn-users] sendmail question

[Philip Lefort]

Ok, I'll give my 2 cents too.
 
If the recommendation that is listed below doesn't work, it may be because your system that is running sendmail doesn't know where to do the lookups.
 
There are 2 possibilities for why this would be a problem.  One, your /etc/resolv.conf on the sendmail machine doesn't point to a name server so that your host name is resolved.  If you have a name server listed, the other reason why your sendmail server isn't finding the host is because you aren't looking at a name server to resolve host names in your nsswitch.conf file.
 
Between what Clinton mentioned & what I mentioned, you should be able to resolve your issue.
 
Happy trails!
 
Phil Lefort


Clinton Fernandes <cfernand at utm.utoronto.ca> wrote:
Here's my $0.02...

What is your hostname?

I had a similar problem because my hostname was set as boo. To get sendmail to
send mail (hehe) I had to make my hostname a FQDN. eg. boo.google.com (or
whatever domain you're in).

-- 
my tail is dun.


Quoting Eric Van Steenbergen :

> Hello all,
> 
> I'm having a little trouble sending mail from one server to another. I think
> I configured everything as it should be but apparantly I'm missing
> something. When I send mail using the following command: 
> 
> sendmail evs at kerridge.com
> text
> .
> 
> the mail gets send as it seems (is in mailq) but with the error 
> j4C75VIB017588 29 30328 May 12 09:05 
> (Deferred: Name server: kerridge.com.: host name lookup
> failure)
> 
> 
> What am I missing? The destination server is reachable (ping and telnet
> tested). kerridge.com is in the hosts file, 
> 
> Kind regards,
> 
> Eric Van Steenbergen
> 
> 
> 

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