sendmail name resolution

jekillen jekillen at
Mon Mar 19 23:42:11 UTC 2007

On Mar 19, 2007, at 3:17 AM, Derek Ragona wrote:

> Sendmail uses the system calls to resolve names.  You need to check:
> /etc/nsswitch.conf
> In that file check the hosts line, this gives the order for hostname 
> resolution, typically it is files then dns.
> Then you should check your /etc/hosts file to be sure that localhost 
> is there and correct.
> Also check /etc/resolve.conf that you have the correct nameservers for 
> dns lookups.
>         -Derek
Thanks, I look into all your suggestions. I think I have gone through 
this before but
I do not install OS's often enough to remember these details. I also 
have so many
books on Unix and related subjects, networking, dns, etc etc that I 
forget where to
find the answer.
Jeff K

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