sendmail - deferred mail - No route to host?

[Wolfgang S. Rupprecht]

"Knute Johnson" <knute at frazmtn.com> writes:
> I'm running a FC5 box and using sendmail for my mail server.  A 
> couple of days ago I noticed some mail not leaving and reporting 
> deferred because of No route to host.  I tried to telnet to these 
> mail servers and get the same no route to host error.  So it seems 
> that they are in fact not reachable.  The odd thing is that they 
> should be busy mail sites.  One of them is my own ISP's mail server.  

Please post the traceroute.  There is no way to tell from the
information you posted where the problem is.

-wolfgang
-- 
Wolfgang S. Rupprecht                http://www.wsrcc.com/wolfgang/