PREUN

/bin/sh

if [ $1 = 0 ]; then
	for n in smtp smtpd; do
	      ln -snf "$n"-std /usr/libexec/postfix/"$n"
	done
	sed -i 's/[^#]*tlsmgr/#&/' /etc/postfix/postfix-files
fi

POSTIN

/bin/sh

for n in smtp smtpd; do
      ln -snf "$n"-tls /usr/libexec/postfix/"$n"
done
sed -i 's/^#\(.*tlsmgr\)/\1/' /etc/postfix/postfix-files
/etc/postfix/post-install upgrade-package