This might work to configure monit on Debian (Jessie) to monitor postsrsd.
check process postsrsd matching "/usr/sbin/postsrsd"
group postsrsd
start program = "/etc/init.d/postsrsd start"
stop program = "/etc/init.d/postsrsd stop"
if failed host localhost port 10001 then restart
if failed host localhost port 10002 then restart