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#!/usr/bin/sh
# -*- sh -*-
: << =cut
=head1 NAME
postfix_mailqueue - Plugin to monitor postfix mail spools
=head1 ABOUT
A guide to postfix mail queue manageent can be found at
L<http://www.postfix.org/QSHAPE_README.html#queues>
A summary:
=over 4
=item maildrop
Messages that have been submitted via the Postfix sendmail(1) command,
but not yet brought into the main Postfix queue by the pickup(8)
service.
=item hold
Messages placed in the "hold" queue stay there until the administrator
intervenes
=item incoming
Inbound mail from the network, or mail picked up by the local
pickup(8) daemon from the maildrop directory.
=item active
Messages that the queue manager has opened for delivery. Only a limited number
of messages is allowed to enter the active queue (leaky bucket strategy, for a
fixed delivery rate).
=item deferred
Mail that could not be delivered upon the first attempt. The queue manager
implements exponential backoff by doubling the time between delivery attempts.
=item corrupt
Unreadable or damaged queue files are moved here for inspection.
=back
=head1 CONFIGURATION
By default "postconf -h queue_directory" is used to determine the
spool directory. Is postconf is not available in the $PATH then
/var/spool/postfix is assumed. This can be overridden by the
"spooldir" environment variable like so:
[postfix_mailqueue]
env.spooldir /var/spool/postfix
=head1 AUTHOR
Unknown.
=head1 LICENSE
Unknown.
=head1 MAGIC MARKERS
=begin comment
These magic markers are used by munin-node-configure when installing
munin-node.
=end comment
#%# family=auto
#%# capabilities=autoconf
=cut
# atempt to get spooldir via postconf, but environment overrides.
# Remember that postconf is not available unless postfix is.
POSTCONFSPOOL="$(postconf -h queue_directory 2>/dev/null || echo /var/spool/postfix)"
SPOOLDIR=${spooldir:-$POSTCONFSPOOL}
. "$MUNIN_LIBDIR/plugins/plugin.sh"
case $1 in
autoconf|detect)
if [ -d "$SPOOLDIR" ] ; then
echo yes
exit 0
else
echo "no (spooldir not found)"
exit 0
fi;;
config)
cat <<'EOF'
graph_title Postfix Mailqueue
graph_vlabel Mails in queue
graph_category mail
graph_total Total
active.label active
deferred.label deferred
maildrop.label maildrop
incoming.label incoming
corrupt.label corrupt
hold.label held
EOF
for field in active deferred maildrop incoming corrupt hold; do
print_warning "$field"
print_critical "$field"
done
exit 0;;
esac
cd "$SPOOLDIR" >/dev/null 2>/dev/null || {
echo "# Cannot cd to $SPOOLDIR"
exit 1
}
cat <<EOF
deferred.value $( { test -d deferred && find deferred -type f; } | wc -l)
active.value $( { test -d active && find active -type f; } | wc -l)
maildrop.value $( { test -d maildrop && find maildrop -type f; } | wc -l)
incoming.value $( { test -d incoming && find incoming -type f; } | wc -l)
corrupt.value $( { test -d corrupt && find corrupt -type f; } | wc -l)
hold.value $( { test -d hold && find hold -type f; } | wc -l)
EOF