Hello. I'm working on a little ARM server that runs Postfix. On incoming or outgoing email I want to trigger an animation on an attached ring of LEDs. My first attempt was to follow the approach here (content filter re-injecting with sendmail) :
http://blog.thecodingmachine.com/content/triggering-php-script-when-your-postfix-server-receives-mail *master.cf <http://master.cf>:* lights unix - n n - - pipe flags=F user=lights argv=/opt/lights/recvhook.js ${sender} ${size} ${recipient} 587 inet n - - - - smtpd -o syslog_name=postfix/lights -o content_filter=lights:dummy *main.cf <http://main.cf>:* milter_macro_daemon_name=ORIGINATING It works, but I've noticed some ugly side effects. Bounce messages are screwy, for one. What method should I use that will have minimal effect on postfix operations? Best regards, Sherman Boyd
