If you wish to setup a version of DikuMud on any computer system, you must send us a message , by snail-mail or e-mail, and inform us where and when you are running the game. (remember to include your address, name etc.)
I'm curious as to how many people actually follow this part of the license?
I don't know, but instead not following the license I would just not use the code. My best guess is people ignore the parts of the license they don't like. At the very least, disrespecting the wish of the authors. I can't speak to the legalities of this one.
04 Feb, 2012, Hades_Kane wrote in the 6th comment:
I followed it. Every email I sent to bounced back, however, I feel when the license requires you to send the information to a certain address, it isn't the responsibility of the user to worry if the email addresses the license requires you to send the information to is valid.
Send the emails, watch them bounce back, and you've followed that portion as far as I'm concerned.