You are asked to register all the time...and end up with a ton of junkmail
HereÂ´s an interesting way around that.
ABC software or whoever says they need your email address to send the activation code or whatever...give them this
email@example.com (xyz is whatever made up name you want to use)
Then you go to www.dontreg.com and enter xyz and bingo, a mailbox opens and there is your email from ABC
...and it is anonymous...safe.