Is your domain registered?  If Road Runner gave you that host name, then
they should have registered it in DNS.  

sorry [~] > nslookup apu.mn.rr.com
Server:  mail.cs.umn.edu
Address:  128.101.32.200

*** mail.cs.umn.edu can't find apu.mn.rr.com: Non-existent host/domain

sorry [~] > nslookup apu.mn.rr.com dns1.rr.com
Server:  dns1.rr.com
Address:  24.30.200.3

*** dns1.rr.com can't find apu.mn.rr.com: Non-existent host/domain

As you can see, RR doesn't even know that your domain exists.

Gabe

On Tue, Aug 22, 2000 at 07:32:41PM -0700, Apu wrote:
> I get the error message " aug 22 14:31:11 apu sendmail[510]: OAA00510:
> ruleset=check_mail, arg1=<root at apu.mn.rr.com>, relay=root at localhost
> <root at apu.mn.rr.com>, reject = 501 <root at apu.mn.rr.com> ... Sender domain must
> exist "
> 
> How do I fix this problem? I am not able to receive any emails. (although I was
> able to send)
> 
> 
> Apu
> 
> 
> 
> Bob Tanner wrote:
> 
> > After upgrading to the latest version of gtk, I am not getting the following
> > warning:
> >
> > Gdk-WARNING **: locale not supported by C library
> >
> > Anyone know what this means and how I can fix it?
> >
> > --
> > Bob Tanner <tanner at real-time.com>       | Phone : (612)943-8700
> > http://www.mn-linux.org                 | Fax   : (612)943-8500
> > Key fingerprint =  6C E9 51 4F D5 3E 4C 66 62 A9 10 E5 35 85 39 D9
> >
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-- 
--------------------------------------------------------------------------------
Gabe Turner				       |  	   X-President,
UNIX Systems Administrator,		       | Assoc. for Computing Machinery
U of M Supercomputing Institute for	       |    Univerisity of Minnesota
Digital Simulation and Advanced Computation    |       dopp at acm.cs.umn.edu

"Dear Dr. Stupid: Why do I have to go to school?" -- Announcer
"Your parents are aliens!!  While you're at school, they shed their
 human skins and breathe dryer lint!!" 
					- Dr. Stupid in "Ask Dr. Stupid"
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