Date: Sun, 8 May 2011 04:24:34 +0400 From: Yuri Pankov <yuri.pankov@gmail.com> To: freebsd-current@freebsd.org Subject: Re: sendmail tries to resolve IPv6:::1 specified in submit.mc Message-ID: <20110508002434.GA18573@procyon.xvoid.org> In-Reply-To: <20110507101637.GF1222@procyon.xvoid.org> References: <20110507074547.GE1222@procyon.xvoid.org> <20110507101112.GA2734@DataIX.net> <20110507101637.GF1222@procyon.xvoid.org>
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On Sat, May 07, 2011 at 02:16:37PM +0400, Yuri Pankov wrote: > On Sat, May 07, 2011 at 06:11:12AM -0400, Jason Hellenthal wrote: > > > > Yuri, > > > > > > On Sat, May 07, 2011 at 11:45:47AM +0400, Yuri Pankov wrote: > > >Hi, > > > > > >I'm getting weird problem on recent -CURRENT - sendmail is trying to > > >resolve 'IPv6:::1' specified in /etc/mail/`hostname`.submit.mc: > > > > > >FEATURE(`msp', `[IPv6:::1]')dnl > > > > > >tcpdump: > > >3802+ A? ipv6:::1.xvoid.org. (36) > > >3802 NXDomain* 0/1/0 (100) > > >3803+ A? ipv6:::1.lab.xvoid.org. (40) > > >3803 NXDomain* 0/1/0 (108) > > >3804+ A? ipv6:::1. (26) > > >3804 ServFail 0/0/0 (26) > > >3804+ A? ipv6:::1. (26) > > >3804 ServFail 0/0/0 (26) > > > > > >IPv6 is configured and is working except for this problem. Sendmail > > >on 8.2-RELEASE is working fine with the same submit.mc contents. > > > > > >Any hints? > > > > > > > Yuri by default this is set to [127.0.0.1] as denoted by: > > http://svn.freebsd.org/base/head/etc/sendmail/freebsd.submit.mc > > > > I believe it has been this way for a very long time. If for some reason > > that you changed the value your self and you would like to revert back to > > defaults you can remove `hostname`.mc & `hostname`.submit.mc and re-run > > make(1) in the /etc/mail directory to give you a default config. > > > > The comment in that file reads: > > dnl If you use IPv6 only, change [127.0.0.1] to [IPv6:::1] > > Err, sure, but that's not what I'm asking. [127.0.0.1] works on both 8.2 > and -CURRENT, however [IPv6:::1] doesn't work for me on -CURRENT, while > working in 8.2. > > I can't find any related changes and checked almost everything I could > think of in my configuration, so I'm asking for hints *why* sendmail > doesn't accept [IPv6:::1] as correct address and tries to resolve it. Sorted it out, this host runs sendmail as outbound only, and default sendmail_submit_flags makes it bind only to 127.0.0.1, so adding -ODaemonPortOptions=Family=inet6,Addr=::1 there solved the problem (it wasn't obvious from the sendmail's behaviour). Anyway, it doesn't belong to this list, sorry for the noise! Yuri
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