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Date: Thu, 15 Mar 2007 09:44:50 GMT
From: Cristiano Valli<cristiano.valli@garr.it>
To: freebsd-gnats-submit@FreeBSD.org
Subject: sendmail
X-Send-Pr-Version: www-3.0

>Number:         110328
>Category:       i386
>Synopsis:       sendmail
>Confidential:   no
>Severity:       non-critical
>Priority:       high
>Responsible:    freebsd-i386
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Mar 15 09:50:04 GMT 2007
>Closed-Date:    Thu Mar 15 14:03:07 GMT 2007
>Last-Modified:  Thu Mar 15 14:03:07 GMT 2007
>Originator:     Cristiano Valli
>Release:        6.1-RELEASE-p3
>Organization:
Consortium GARR
>Environment:
FreeBSD cyrus.dir.garr.it 6.1-RELEASE-p3 FreeBSD 6.1-RELEASE-p3 #0: Thu Jul 20 06:47:18 CEST 2006     toor@cyrus.dir.garr.it:/usr/src/sys/i386/compile/CYRUS-SMP  i386
>Description:
cyrus# host -t AAAA xxxx.xxx.xxx
Host xxxx.xxx.xxx not found: 2(SERVFAIL)

the sendmail.cf and submit.cf are configured as suggested into sendmail guide to work around broken AAAA :

O ResolverOptions=WorkAroundBrokenAAAA

the problem persists.
The host's NIC has an IPv6 address and the kernel parameters concerning IPv6 are : 

cyrus# sysctl -a |grep inet6
net.inet6.ip6.forwarding: 0
net.inet6.ip6.redirect: 1
net.inet6.ip6.hlim: 64
net.inet6.ip6.maxfragpackets: 6400
net.inet6.ip6.accept_rtadv: 0
net.inet6.ip6.keepfaith: 0
net.inet6.ip6.log_interval: 5
net.inet6.ip6.hdrnestlimit: 50
net.inet6.ip6.dad_count: 1
net.inet6.ip6.auto_flowlabel: 1
net.inet6.ip6.defmcasthlim: 1
net.inet6.ip6.gifhlim: 30
net.inet6.ip6.kame_version: FreeBSD
net.inet6.ip6.use_deprecated: 1
net.inet6.ip6.rr_prune: 5
net.inet6.ip6.v6only: 1
net.inet6.ip6.rtexpire: 3600
net.inet6.ip6.rtminexpire: 10
net.inet6.ip6.rtmaxcache: 128
net.inet6.ip6.use_tempaddr: 0
net.inet6.ip6.temppltime: 86400
net.inet6.ip6.tempvltime: 604800
net.inet6.ip6.auto_linklocal: 1
net.inet6.ip6.prefer_tempaddr: 0
net.inet6.ip6.use_defaultzone: 0
net.inet6.ip6.maxfrags: 6400
net.inet6.ip6.mcast_pmtu: 0
net.inet6.icmp6.rediraccept: 1
net.inet6.icmp6.redirtimeout: 600
net.inet6.icmp6.nd6_prune: 1
net.inet6.icmp6.nd6_delay: 5
net.inet6.icmp6.nd6_umaxtries: 3
net.inet6.icmp6.nd6_mmaxtries: 3
net.inet6.icmp6.nd6_useloopback: 1
net.inet6.icmp6.nodeinfo: 3
net.inet6.icmp6.errppslimit: 100
net.inet6.icmp6.nd6_maxnudhint: 0
net.inet6.icmp6.nd6_debug: 0
net.inet6.icmp6.nd6_maxqueuelen: 1

I guess someone can help me in some way.
Thanks

>How-To-Repeat:
the problem it's related specifically to that mail domain and to that mail host.
Sendmail operates fine with other domains.
>Fix:

>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->closed 
State-Changed-By: remko 
State-Changed-When: Thu Mar 15 14:03:06 UTC 2007 
State-Changed-Why:  
This is a question, not a PRoblem, please defer to the Questions 
mailinglist or the Networking mailinglist, see: 
http://lists.freebsd.org/mailman/listinfo for more information. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=110328 
>Unformatted:
