Path: utzoo!attcan!uunet!lll-winken!ames!ucsd!orion.cf.uci.edu!uci-ics!zardoz!tgate!irsx01!wb3ffv!aplcen!johnj From: johnj@aplcen.apl.jhu.edu (7058 work) Newsgroups: comp.mail.sendmail Subject: Problems aliasing hostname to domain name Keywords: sendmail, nameserver, aliasing domain name Message-ID: <475@aplcen.apl.jhu.edu> Date: 11 Jan 89 04:31:11 GMT Distribution: na Organization: Johns Hopkins University, Laurel, MD Lines: 35 I have a problem with sendmail that I can't seem to resolve. The trouble is that a few weeks ago, our host was added to a an internet name server. Our primary host we wanted to be able to address as either welchvax.welch.jhu.edu or by our domain name, welch.jhu.edu. Sending mail to either name results in sending to welch.jhu.edu, the problem arises when the mail gets to the host welchvax. It barfs up the address as unknown host: 550 welch.jhu.edu.tcp... 550 Host unknown 550 ... Host unknown If I add the domain name to the welchvax.welch.jhu.edu line of the host file, welchvax mailer is not willing to talk to itself: >>> HELO welchvax.welch.jhu.edu <<< 553 welchvax.welch.jhu.edu I refuse to talk to myself 554 ... Service unavailable: Bad file number Our sendmail file has lines as follows that I thought would help to resolve its hostname before conecting to itself (both in S0 before tcp stuff): R$-<@welchvax.welch.jhu.edu> $1 R$-<@welch.jhu.edu> $1 I am not sure wether sendmail.cf is the problem or if there is some other way to "alias" our domain name to our host name. Any help would be greatly appreciated. -johnj (johnj@welchsun3.welch.jhu.edu; bitnet:johnj@jhuigf)