[olug] Mail Relaying w/Filtering

[Phil Brutsche]

A long time ago, in a galaxy far, far way, someone said...

> We have base stations out in the field that collect data from our
> system.  These base stations (linux based 386) have ethernet, serial,
> and modem connections.  The serial reads data from another module.  The
> ethernet and modem are used for communications with us.  The modem can
> dial into our service provider and email the data it has.  The service
> provider won't let us do the same thing through ethernet because it
> does not orginate from inside thier system (ie not from their modem
> pool).  We wnat to set up a mail relay system that we can use for all
> email communication (modem and ethernet).  Of course we don't want it
> to be open to the rest of the world.  Here is my question:  Can we set
> up a relay that can filter the mail so that it must conform to a
> specific format or have a specific identifier in it?

Two words: SMTP AUTH

-- 

Phil Brutsche
phil at brutsche.us