Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!rayssd!tdw206!heiser@tdw201.ed.ray.com From: heiser@tdw201.ed.ray.com Newsgroups: comp.mail.sendmail Subject: sendmail on gateway machine with two hostnames Message-ID: <3828@tdw206.ed.ray.com> Date: 11 Feb 91 18:14:08 GMT Sender: heiser@tdw206.ed.ray.com (Bill Heiser - Unix Sys Admin @ Raytheon Company, Sudbury MA) Lines: 29 We have a machine that acts as a gateway between a network and a subnet. As such, the machine has two IP addresses and two hostnames (sud507 and sud507-gw). When I send mail to user@sud507, it bounces back with the following error: Connected to sud507: >>> HELO sud507-gw.ed.ray.com <<< 553 sud507-gw.ed.ray.com host name configuration error 554 ... Service unavailable If I send mail to sud507-gw, it goes through OK. What's the best way to make mail to either hostname get routed correctly to that machine? The machine is running SunOS 4.0.3, using Sun's Sendmail. Tips or suggestions would be appreciated. If more information would help, let me know what you need. Thanks, Bill -- Work: heiser@tdw201.ed.ray.com {decuac,necntc,uunet}!rayssd!tdw201.ed.ray.com!heiser Home: bill@unixland.uucp, uunet!world!unixland!bill *Public Access Usenet* (508)655-3848 12/24, 655-8723 96-HST, 651-8733 96-PEP/V32 *Public Access Unix *