From owner-freebsd-questions Tue Feb 3 23:39:39 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id XAA05860 for questions-outgoing; Tue, 3 Feb 1998 23:39:39 -0800 (PST) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from luke.cpl.net (luke.cpl.net [209.150.73.2]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id XAA05854 for ; Tue, 3 Feb 1998 23:39:30 -0800 (PST) (envelope-from shawn@luke.cpl.net) Received: from localhost (shawn@localhost) by luke.cpl.net (8.8.8/8.6.12) with SMTP id XAA25956; Tue, 3 Feb 1998 23:37:46 -0800 (PST) Date: Tue, 3 Feb 1998 23:37:45 -0800 (PST) From: Shawn Ramsey To: chas cc: questions@FreeBSD.ORG Subject: Re: why must POP clients have a resolvable IP ? what about dynamic IPs ? In-Reply-To: <3.0.32.19980204144059.0093b100@peace.com.my> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG X-To-Unsubscribe: mail to majordomo@FreeBSD.org "unsubscribe questions" > I'm sure we've all seen this error message before : > > >> popper[14612]: (v2.2) Unable to get canonical name of client, err = 0 > > And checking the archives again, the explanation is : > > [snip] > "This means it can't get the domain name of the IP that is using popper. > Try doing a nslookup on the IP, if it fails that is the reason." > "You need to put the IP address of your client in the named or hosts." > [/snip] > > But the people who are collecting their mail via POP from our mailserver > are accessing the web through the local ISP (which is not us.) and hence > they have dynamic IPs. Is there any way to solve this in such circumstances ? > > Thank you very much, You could tell them to use a real ISP that knows how to do reverse dns. :)