POSTIN

/bin/sh

FILE=/etc/postfix/dynamicmaps.cf; if ! grep -q "^mysql[[:space:]]" ${FILE}; then echo "mysql	/usr/lib/postfix/dict_mysql.so	dict_mysql_open" >> ${FILE}; fi

POSTUN

/bin/sh

FILE=/etc/postfix/dynamicmaps.cf; if [ $1 = 0 -a -s $FILE ]; then  cp -p ${FILE} ${FILE}.$$; grep -v "^mysql[[:space:]]" ${FILE}.$$ > ${FILE}; rm -f ${FILE}.$$; fi