docker-mailserver/target/bin/report-pflogsumm-yesterday

#!/bin/bash

# shellcheck source=../scripts/helpers/index.sh
source /usr/local/bin/helpers/index.sh

set -o errexit
set -o pipefail
set -o nounset

HOSTNAME=${1}
RECIPIENT=${2}
SENDER=${3}

[[ -x /usr/sbin/pflogsumm ]] || _exit_with_error "'/usr/sbin/pflogsumm' not found or executable"

# shellcheck disable=SC2046
BODY=$(gzip -cdfq $(ls -tr /var/log/mail/mail.log*) | /usr/sbin/pflogsumm --problems_first -d yesterday)

sendmail -t <<EOF
From: ${SENDER}
To: ${RECIPIENT}
Subject: Postfix summary for ${HOSTNAME} sent $(date '+%Y-%m-%d_%H%M%S')
Content-Transfer-Encoding: 8bit
Content-Type: text/plain; charset=UTF-8

${BODY}
EOF