From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.org/gmane.linux.lib.musl.general/7509 Path: news.gmane.org!not-for-mail From: Rich Felker Newsgroups: gmane.linux.lib.musl.general Subject: Re: Still not possible to send mail to domain libc.org Date: Thu, 23 Apr 2015 18:33:28 -0400 Message-ID: <20150423223328.GK17573@brightrain.aerifal.cx> References: <55393C1F.6060900@gmx.de> <20150423195959.GH17573@brightrain.aerifal.cx> <553952B1.6090707@gmx.de> <20150423205226.GI17573@brightrain.aerifal.cx> <5539632C.3040403@gmx.de> <55396A52.8050904@gmx.de> Reply-To: musl@lists.openwall.com NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: ger.gmane.org 1429828442 22254 80.91.229.3 (23 Apr 2015 22:34:02 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 23 Apr 2015 22:34:02 +0000 (UTC) To: musl@lists.openwall.com Original-X-From: musl-return-7522-gllmg-musl=m.gmane.org@lists.openwall.com Fri Apr 24 00:33:44 2015 Return-path: Envelope-to: gllmg-musl@m.gmane.org Original-Received: from mother.openwall.net ([195.42.179.200]) by plane.gmane.org with smtp (Exim 4.69) (envelope-from ) id 1YlPgl-0006iK-5S for gllmg-musl@m.gmane.org; Fri, 24 Apr 2015 00:33:43 +0200 Original-Received: (qmail 13510 invoked by uid 550); 23 Apr 2015 22:33:41 -0000 Mailing-List: contact musl-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: Original-Received: (qmail 13485 invoked from network); 23 Apr 2015 22:33:40 -0000 Content-Disposition: inline In-Reply-To: <55396A52.8050904@gmx.de> User-Agent: Mutt/1.5.21 (2010-09-15) Original-Sender: Rich Felker Xref: news.gmane.org gmane.linux.lib.musl.general:7509 Archived-At: On Thu, Apr 23, 2015 at 11:55:30PM +0200, Harald Becker wrote: > Hi Rich, > > extending my search on qhe net I found the following: > > All of the senders experiencing the bounced messages mentioning > cname lookup failure appear to be running the qmail mail server > software. Again there are no CNAMEs involved. > Qmail, if not using a third party patch that was written in the late > 90’s, has an issue sending to domains whose name servers respond to > DNS queries of type “ANY” with more than 512 bytes of data; that is > a bug in qmail and the author has never fixed it because he wants > you to use his DNS server software which also eliminates the issue > in a different way. Responses larger than 512 bytes are not supported over UDP and are rarely used. I saw some replies close to that long but none of them had the TC (truncation) bit set, so I don't think that's your issue either. Rich