Date: Wed, 7 Mar 2007 23:40:25 +0100 From: Buki <dev@null.cz> To: Mark Andrews <Mark_Andrews@isc.org> Cc: jingmei1992@yahoo.com.cn, freebsd-stable@freebsd.org, Howard Leadmon <howard@leadmon.net> Subject: Re: DNS/Bind Error Help under FBSD 6.2 using Sendmail.. Message-ID: <20070307224025.GC378@dev.null.cz> In-Reply-To: <200703072124.l27LO7On013727@drugs.dv.isc.org> References: <001501c760d2$872a6650$081872cf@Leadmon.local> <200703072124.l27LO7On013727@drugs.dv.isc.org>
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[-- Attachment #1 --] On Thu, Mar 08, 2007 at 08:24:07AM +1100, Mark Andrews wrote: > > > > > I am seeing an issue with some eMail moving from the server here is one such > > example: > > > > l25F3FJW082596 96337 Mon Mar 5 10:03 <bfondak@kpl.com> > > (Deferred: Name server: mail.jingmei.com.: host name lookup > > f) > > <order_bj@jingmei.com> > > <mlin@jingmei.com> > > > > > > OK, so I did a lookup of it's MX, and get: > > > > jingmei.com mail is handled by 10 mail.jingmei.com > > > > > > So then I looked up mail.jingmei.com: > > > > mail.jingmei.com has address 220.112.41.223 > > Host mail.jingmei.com not found: 2(SERVFAIL) > > > > I see I am getting a returned IP address which can be connected to, but also > > a > > SERVFAIL error. > > > > Now I am aware of the AAAA IPv6 issue, and have the needed setting in my > > sendmail.cf file: > > > > O ResolverOptions=WorkAroundBrokenAAAA > > > > So I would have hoped this would have worked around the issue and permitted > > mail flow, yet apparently not for some reason. > > > > I have googled and looked around, and maybe just not found the right info yet > > , > > but if anyone has any idea how to track this down, or resolve the issue it > > would sure be most appreciated. > > > > Most of my mail moves fine, but I have a couple domains I am guessing have > > something wrong, so I can't seem to get mail out to them... Hi, I'm seeing the same error even on older versions of FreeBSD (thus sendmail). I also tracked the issue to SERVFAIL response to AAAA request. According to sendmail docs, the WorkAroundBrokenAAAA option should work as a workaround, but clearly doesn't. Compiling sendmail with NO_INET6=yes does. Setting mailertable entry for (broken) destination domain to relevant IPv4 address should also work (athough not tested). I haven't searched sendmail archives, but since it's mentioned in the docs ... Buki -- PGP public key: http://dev.null.cz/buki.asc /"\ \ / ASCII Ribbon Campaign X Against HTML & Outlook Mail / \ http://www.thebackrow.net [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (FreeBSD) iD8DBQFF7z9ZPzhIkpLLm08RAre3AKCjBVsz79aHnXalhkaVYBXXhh73HwCfcvKQ VYI4LZiUW0IQKZkfgfQPlCw= =IQgy -----END PGP SIGNATURE-----
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