> * Define "incoming" mail. > * Define "outgoing" mail.
Incoming: from outside via SMTP Outgoing: to outside via SMTP Best regards, Sherman Boyd On Sun, Feb 15, 2015 at 10:10 AM, Viktor Dukhovni < postfix-us...@dukhovni.org> wrote: > On Sun, Feb 15, 2015 at 09:29:50AM -0700, Sherman Boyd wrote: > > > 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) : > > * Define "incoming" mail. > * Define "outgoing" mail. > > Mail enters Postfix from multiple sources: > > * From outside via SMTP. > * From local processes via sendmail(1). > * Internally generated bounce and postmaster notices > * Internally generated probes via verify(8) > * Indirect delivery of aliases in local(8) > > Mail leaves Postfix via: > > * Delivery to remote machines via SMTP. > * Delivery to a mailstore via LMTP > * Delivery to a local mbox file or maildir via local(8) or virtual(8). > * Delivery to commands via command aliases(5), mailbox_command settings > or pipe(8) transports. > * Circular file via discard(8). > > Which of these various events do you want to blink the lights? > Presumably this is intended to be a low-volume deployment, otherwise > the lights will just flicker imperceptibly. > > -- > Viktor. >
