Bug#697612: exim4-daemon-light: "MAIN_LOCAL_DOMAINS=@:localhost" seems not to respect "@"

[Marc Haber]

Thanks for the comprehensive report. What do your logs say with regard
to 1Wcool-0001JR-Kw?

Are you positive that your DNS was OK at the time of this incident and
that your exim was thus able to determine that
devilserver.deviltechnologies.com is the local host?

Greetings
Marc

On Wed, Apr 23, 2014 at 10:38:30AM +0200, Diego Guella wrote:
> From: Diego Guella <diego.guella at deviltechnologies.com>
> Subject: Bug#697612: exim4-daemon-light: "MAIN_LOCAL_DOMAINS=@:localhost"
>  seems not to respect "@"
> To: 697612 at bugs.debian.org
> Cc: Diego Guella <diego.guella at deviltechnologies.com>, osamu at debian.org
> Reply-To: Diego Guella <diego.guella at deviltechnologies.com>,
>  697612 at bugs.debian.org
> Date: Wed, 23 Apr 2014 10:38:30 +0200
> X-Debian-PR-Package: exim4-daemon-light
> X-Mailer: Microsoft Outlook Express 6.00.2900.5931
> List-Id: Reach the exim4 maintainers
>  <pkg-exim4-maintainers.lists.alioth.debian.org>
> X-Spam-Score: (--) -2.6
> X-Spam-Report: torres.zugschlus.de  Content analysis details:   (-2.6
>  points, 5.0 required)   pts  rule name              description  ----
>  ---------------------- ------------------------------------------- -0.7
>  RP_MATCHES_RCVD        Envelope sender domain matches handover relay
>  domain -1.9 BAYES_00               BODY: Bayes spam probability is 0 to 1%
>                              [score: 0.0000]
> 
> Package: exim4-daemon-light
> Version: 4.72-6+squeeze3
> 
> Same problem here.
> The bad news is, this happened from today, with no configuration
> changes (that I know of) on the server.
> The server is in production.
> 
> Local mails to root at localhost and user at localhost are delivered
> locally without problems, but local mails to
> root at devilserver.deviltechnologies.com does get sent to the
> smarthost.
> The server configuration is some years old, and it worked perfectly
> until yesterday! (I get a daily mail from mdadm at 06:25 local time)
> Today, I found that the mail was bounced and bounced again from my
> server and the smarthost, and then my server stopped trying, sending
> this error email message:
> -----
> Message 1Wcool-0001JR-Kw has been frozen (delivery error message).
> The sender is <>.
> 
> The following address(es) have yet to be delivered:
>  postmaster at devilserver.deviltechnologies.com: Too many "Received"
> headers - suspected mail loop
> -----
> 
> update-exim4.conf.conf:
> -----
> dc_eximconfig_configtype='smarthost'
> dc_other_hostnames=''
> dc_local_interfaces=''
> dc_readhost=''
> dc_relay_domains=''
> dc_minimaldns='false'
> dc_relay_nets=''
> dc_smarthost='vps26197.ovh.net'
> CFILEMODE='644'
> dc_use_split_config='false'
> dc_hide_mailname='false'
> dc_mailname_in_oh='true'
> dc_localdelivery='maildir_home'
> -----
> 
> Some other information:
> -----
> root at devilserver:/etc/exim4# uname -n
> devilserver
> root at devilserver:/etc/exim4# hostname
> devilserver
> root at devilserver:/etc/exim4# hostname -f
> devilserver.deviltechnologies.com
> root at devilserver:/etc/exim4# grep -v ^# /etc/hosts
> 127.0.0.1       localhost
> 192.168.200.249 devilserver.deviltechnologies.com       devilserver
> 
> ::1     ip6-localhost ip6-loopback
> fe00::0 ip6-localnet
> ff00::0 ip6-mcastprefix
> ff02::1 ip6-allnodes
> ff02::2 ip6-allrouters
> -----
> 
> I have BIND installed, version 1:9.7.3.dfsg-1~squeeze11
> 
> I tried Osamu Aoki's workaround
> (dc_other_hostnames='devilserver.deviltechnologies.com') and it
> fixes the problem for me, too.
> 
> I assume there is some deeply hidden misconfiguration of something
> other than exim on my server, or in my network.
> Again, this setup has worked fine for some years.
> I have a backup of the server configuration of some months ago, and
> I can double-check for changes in the configuration files.
> Do somebody know where can I look at?
> 
> 
> Thanks,
> Diego
> 
> -- 
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-- 
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Marc Haber         | "I don't trust Computers. They | Mailadresse im Header
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