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Date:      Tue, 12 Sep 1995 22:25:31 +0000 ()
From:      Robert Burns <>
To:        "Jonathan M. Bresler" <>
Subject:   Re: Mail + Slip, HOW TO!
Message-ID:  <>
In-Reply-To: <>

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> > > > New problem, can't send mail between hosts. I suspect it's related to
> > > > my routing tables on each end. When I try and mail a user on HP-UX machine
> > > > I get message simailar to:
> > > > 
> > > > hpux.machine: Name server time out, etc...
> > > 
> > > 	does nslookup return the expected results on both machines??
> > > 	neither address that you list below is in the DNS.
> > 
> > I'm not sure what you mean, this is not an internet connected network.
> > Do I have to set up some kind of name server in this case? 
> 	sendmail needs to resolve the hostnames into ip addresses.  i 
> assume that you have routing set up correctly--you can ping each machine 
> from the other.   resolving hostnames into ip addresses is done by either 
> bind or /etc/hosts file (check your /etc/host.conf)
> 	nslookup is a user command to exmaine the domain name system.
> 	sendmail will try to find the ip address of the destination 
> machine, or failing that an MX record and the ip address of the machine 
> listed in the MX record----delivery is dependent on this translation 
> succeeding.
> jmb

Thanks for your help. As I mentioned before, the system is a LAN. The host
I was trying to reach was in my /etc/hosts file, and my host.conf was set 
up to try hosts before bind, so it took a while to figure it out. The 
problem was in (FreeBSD);

The OI macro had to be commented out to avoid having sendmail use the BIND 
server at all times. 

The problem on the HP side was a bit silly. Although I was sending to 
the right address, the host name I was using did not correspond to that of 
myname on the FreeBSD side and was therefore being rejected by sendmail.
Robert Burns (
Mtl., Ca.

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