mail_fix_opendkim

#!/bin/bash

#set -o

FILE=/var/packages/MailServer/target/etc/template/opendkim.template
NAME=$(basename "$FILE")

BACKUP=/var/services/homes/mactech/backup
STAMP=$(date +"%Y-%m-%d_%H:%M")

echo_out() { [[ -t 1 ]] && echo "$@" ; }

[[ ! -d "$BACKUP" ]] && mkdir -p "$BACKUP"

if grep -Eiq '^On-BadSignature\s+reject' "$FILE"; then
  echo "# File needs repair"
  echo "---"
  echo "# Created backup directory"

  # backup
  mkdir -p "${BACKUP}/${STAMP}"
  echo "# Original file backed up"
  cp -v "$FILE" "${BACKUP}/${STAMP}/${NAME}.original"

  # text replacemen function
  text_replace() { sed -e "s/^${1}/${2}/g" "$FILE" > "${BACKUP}/${STAMP}/${NAME}.original" ; }
  text_replace " *On-BadSignature \+reject" "On-BadSignature accept"
  text_replace " *MinimumKeyBits \512" "MinimumKeyBits    512"

else
  echo_out OK
fi


# synopkgctl stop MailServer; sudo synopkgctl start MailServer

exit 0