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diff --git a/mail-filter/mimedefang/files/mimedefang.conf b/mail-filter/mimedefang/files/mimedefang.conf
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+####################################
+# Mandatory options for MIMEDefang #
+####################################
+
+# spool directory
+SPOOLDIR='/var/spool/MIMEDefang'
+
+# The socket used by mimedefang to communicate with the sendmail binary.
+# You can leave this commented out.
+# SOCKET="${SPOOLDIR}/mimedefang.sock"
+
+# The socket used by the multiplexor.
+# You can leave this commented out.
+# MX_SOCKET="${SPOOLDIR}/mimedefang-multiplexor.sock"
+
+########################################
+# Additional options for MIMEDefang    #
+# For a list of all of them:           #
+# man mimedefang (MD_OPTS)             #
+# man mimedefang-multiplexor (MX_OPTS) #
+########################################
+
+#############
+# MD_MX_OPTS: common options to both processes.
+#############
+
+# Run the multiplexor and filters as this user, not root (RECOMMENDED).
+MD_MX_OPTS+=' -U defang'
+
+# Syslog facility
+# MD_MX_OPTS+=' -S mail'
+
+##########
+# MD_OPTS: mimdefang options.
+##########
+
+# Number of workers reserved for connections from loopback.  Use -1
+# for default behaviour, 0 to allow loopback connections to queue,
+# or >0 to reserve workers for loopback connections
+MD_OPTS+=' -R -1'
+
+# If you want to keep spool directories around if the filter fails,
+# add the -k option.
+# MD_OPTS+=' -k'
+
+# Turns on the multiplexor relay checking function
+# MD_OPTS+=' -r'
+
+# Turns on the multiplexor HELO checking function
+# MD_OPTS+=' -H'
+
+# Turns on the multiplexor sender checking function
+# MD_OPTS+=' -s'
+
+# Turns on the multiplexor recipient checking function
+# MD_OPTS+=' -t'
+
+# Extra sendmail macros to pass.
+# MD_OPTS+=' -a auth_author'
+
+# Do not reveal info via X-Scanned-By header (recommended).
+MD_OPTS+=' -X'
+
+##########
+# MX_OPTS: mimdefang-multiplexor options.
+##########
+
+# multiplexor logs events to syslog
+MX_OPTS+=' -l'
+
+# Use an embedded Perl interpreter
+# MX_OPTS+=' -E'
+
+# Set to full path of socket for Sendmail's SOCKETMAP map, if you
+# want to use it with MIMEDefang
+# MX_OPTS+=("-N ${SPOOLDIR}/map.sock")
+
+# The multiplexor does not start all workers at the same time. Instead,
+# it starts one worker every X seconds when the system is idle.
+# If the system is busy, the multiplexor starts workers as incoming mail
+# requires attention.
+# MX_OPTS+=' -w 3'
+
+# The next setting is an absolute limit on worker activation.  The multiplexor
+# will NEVER activate a worker within X seconds of another.
+# The default of zero means that the multiplexor will activate workers as
+# quickly as necessary to keep up with incoming mail.
+# MX_OPTS+=' -W 0'
+
+# The multiplexor can log stats to a file (eg. /var/log/mimedefang/stats).
+# The log directory must exist and be writable by the user you're running
+# MIMEDefang as.
+# MX_OPTS+=' -t /var/log/mimedefang/stats'
+
+# The stats file can be flushed after each entry.
+# MX_OPTS+=' -u'
+
+# The multiplexor can log stats to syslog.
+# MX_OPTS+=' -T'
+
+# Maximum # of requests a process handles.
+# MX_OPTS+=' -r 200'
+
+# Minimum number of processes to keep.  The default of 0 is probably
+# too low; we suggest 2 instead.
+MX_OPTS+=' -m 2'
+
+# Maximum number of processes to run (mail received while this many
+# processes are running is rejected with a temporary failure, so be
+# wary of how many emails you receive at a time).  This applies only
+# if you DO use the multiplexor.  The default value of 2 is probably
+# too low; we suggest 10 instead.
+MX_OPTS+=' -x 10'
+
+# Uncomment to log worker status; it will be logged every X seconds.
+# MX_OPTS+=' -L 30'
+
+# Uncomment next line to have busy workers send status updates to the
+# multiplexor.  NOTE: Consumes one extra file descriptor per worker, plus
+# a bit of CPU time.
+# MX_OPTS+=' -Z'
+
+# Limit worker processes' resident-set size to this many kilobytes.  Default
+# is unlimited.
+# MX_OPTS+=' -R 10000'
+
+# Limit total size of worker processes' memory space to this many kilobytes.
+# Default is unlimited.
+# MX_OPTS+=' -M 30000'
+
+# If you want to use the "notification" facility, set the appropriate port.
+# See the mimedefang-notify man page for details.
+# MX_OPTS+=' -O inet:4567'
+
+# Number of seconds a process should be idle before checking for
+# minimum number and killed.
+# MX_OPTS+=' -i 300'
+
+# Number of seconds a process is allowed to scan an email before it is
+# considered dead.  The default is 30 seconds; we suggest 600.
+MX_OPTS+=' -b 600'
+
+# Multiplexor queue size -- default is 0 (no queueing)
+# MX_OPTS+=' -q 10'
+
+# Multiplexor queue timeout -- default is 30 seconds
+# MX_OPTS+=' -Q 30'
+
+# SUBFILTER -F option specifies which filter rules file to use
+# MX_OPTS+=' -F /etc/mail/mimedefang-filter'
+
+###########################
+# Upstream recommendation #
+###########################
+# Locale should be set to "C" for generating valid date headers
+LC_ALL=C
+export LC_ALL