Bug#613768: exim4 should include $HOST to local domains by default

[Vincent Lefevre]

Package: exim4
Version: 4.72-6
Severity: normal

By default, exim4 adds localhost and the FQDN (or the mailname?)
to local domains, but not $HOST (the nodename).

This is a problem because other packages may expect $HOST to be
in the local domains. This is the case of monit, which sends mail
with, by default:

  From: monit@$HOST

Thus such an address doesn't get rewritten when the mail is
transmitted to a different machine. A consequence is that the mail
can be blocked because of incorrect domain part. A workaround can
be to add $HOST manually via 'dpkg-reconfigure exim4-config', but
the default config should work.

-- Package-specific info:
Exim version 4.72 #1 built 31-Jan-2011 18:42:28
Copyright (c) University of Cambridge, 1995 - 2007
Berkeley DB: Berkeley DB 4.8.30: (April  9, 2010)
Support for: crypteq iconv() IPv6 GnuTLS move_frozen_messages DKIM
Lookups: lsearch wildlsearch nwildlsearch iplsearch cdb dbm dbmnz dnsdb dsearch nis nis0 passwd
Authenticators: cram_md5 plaintext
Routers: accept dnslookup ipliteral manualroute queryprogram redirect
Transports: appendfile/maildir/mailstore autoreply lmtp pipe smtp
Fixed never_users: 0
Size of off_t: 8
GnuTLS compile-time version: 2.8.6
GnuTLS runtime version: 2.10.4
Configuration file is /var/lib/exim4/config.autogenerated
# /etc/exim4/update-exim4.conf.conf
#
# Edit this file and /etc/mailname by hand and execute update-exim4.conf
# yourself or use 'dpkg-reconfigure exim4-config'
#
# Please note that this is _not_ a dpkg-conffile and that automatic changes
# to this file might happen. The code handling this will honor your local
# changes, so this is usually fine, but will break local schemes that mess
# around with multiple versions of the file.
#
# update-exim4.conf uses this file to determine variable values to generate
# exim configuration macros for the configuration file.
#
# Most settings found in here do have corresponding questions in the
# Debconf configuration, but not all of them.
#
# This is a Debian specific file

dc_eximconfig_configtype='internet'
dc_other_hostnames='xvii.vinc17.org;xvii'
dc_local_interfaces='127.0.0.1'
dc_readhost=''
dc_relay_domains=''
dc_minimaldns='true'
dc_relay_nets=''
dc_smarthost=''
CFILEMODE='644'
dc_use_split_config='false'
dc_hide_mailname='false'
dc_mailname_in_oh='true'
dc_localdelivery='maildir_home'
mailname:xvii.vinc17.org

-- System Information:
Debian Release: wheezy/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.32-5-amd64 (SMP w/2 CPU cores)
Locale: LANG=POSIX, LC_CTYPE=en_US.ISO8859-1 (charmap=ISO-8859-1)
Shell: /bin/sh linked to /bin/dash

Versions of packages exim4 depends on:
ii  debconf [debconf-2.0]         1.5.38     Debian configuration management sy
ii  exim4-base                    4.72-6     support files for all Exim MTA (v4
ii  exim4-daemon-light            4.72-6     lightweight Exim MTA (v4) daemon

exim4 recommends no packages.

exim4 suggests no packages.

-- debconf information:
* exim4/drec: