Date: Sat, 22 Sep 2001 09:52:47 -0700 From: Gregory Neil Shapiro <gshapiro@freebsd.org> To: Mike Tancsa <mike@sentex.net> Cc: stable@freebsd.org Subject: Re: something strange with sendmail 8.11.6 on FreeBSD Message-ID: <15276.49631.32382.941@horsey.gshapiro.net> In-Reply-To: <5.1.0.14.0.20010922082451.05af6d70@192.168.0.12> References: <5.1.0.14.0.20010922082451.05af6d70@192.168.0.12>
next in thread | previous in thread | raw e-mail | index | archive | help
mike> OK, here is a strange one. Using the stock sendmail in FreeBSD
mike> STABLE, I am seeing strange timeouts to some hosts. e.g. mail to
mike> ica.net via icamail.ica.net.
> dig aaaa icamail.ica.net
; <<>> DiG 8.3 <<>> aaaa icamail.ica.net
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 4
^^^^^^^^
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
;; QUERY SECTION:
;; icamail.ica.net, type = AAAA, class = IN
From sendmail/README:
When attempting to canonify a hostname, some broken name servers will
return SERVFAIL (a temporary failure) on T_AAAA (IPv6) lookups. If you
want to excuse this behavior, compile sendmail with
-D_FFR_WORKAROUND_BROKEN_NAMESERVERS and add WorkAroundBrokenAAAA to your
ResolverOptions setting. However, instead, we recommend catching the
problem and reporting it to the name server administrator so we can rid the
world of broken name servers.
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-stable" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?15276.49631.32382.941>