A somewhat controversial topic!
As of late there is greater and greater push for transport later security. rightly so.
Below is an example of using tcpdump and ncat to log insecure http/pop/smtp etc.. traffic at a network boundary and log the results into irc chat.

screenshot_2016-11-14_00-00-51

Required:

How it works
Create the 2 files below, make sure redis is running, and start them.
It doesn’t mater which one you start first.

IRC bot

Tcpdump