Re: [cobalt-users] Raq3 Sendmail can't gethostbyaddr. Is that wrong?

["Gerald Waugh" <gerald@xxxxxxxxx>]

"Cobalter" <xtraprss@xxxxxxxxxxxxx>   wrote
ON: Friday, March 06, 2037 6:06 PM
> 
> I'm not sure if this is a sendmail or DNS issue (yup, I'm new to this email 
> and DNS thing), but if anybody could help, I'd be greatly thrilled.
> 
> I keep getting the following errors, which show up as Security Violations 
> in logcheck (mail.host.ip.address is, of course, the server's own IP 
> address). Can anybody give me a clue as to what I should check first?
> 
> Mar 6 14:39:07 www sendmail[11140]: gethostbyaddr(mail.host.ip.address) 
> failed: 1
<SNIP>
I think (dangerous)
That reverse loohup is not working (DNS).
sendmail is attempting to resolve the hostname from the ip address.
Either fix reverse
or add the host name - ip address to /etc/resolv.conf
Gerald