How to tell IP address of remote machine?

[Patrick O'Callaghan]

On Mon, 2009-10-26 at 03:36 +0000, Timothy Murphy wrote:
> My college has set up mailman so that list-owners
> (and I presume anyone else) has to post email 
> from within the college system.
> I would prefer to send email from home, where I can use KMail,
> although it is very little trouble to ssh into my college account,
> and send email from there.

How do they check? IIRC Mailman doesn't have very sophisticated
authentication features. Many installations just look at the From line,
which you can change.

poc