Roaring Penguin Software's <A HREF="http://www.prweb.com/releases/2005/10/prweb298023.htm">CanIt-PRO anti spam</A> software customers can now sign up for mailing lists or input email addresses in online forms without fear that those addresses will be sold or used by third parties thanks to a new innovation called CanIt "Locked Addresses." Users can now create random-looking email addresses that forward mail to their regular inbox, but only accept messages from one particular sender each--automatically rejecting mail from spammers or any unauthorized third party. Locked addresses work by "locking on" to the first person or organization to send email to a user's particular locked address. Once that first sender has been identified, the locked address will reject email messages from any other sender and log that information for the user. Users can create an unlimited number of locked addresses and use them when entering information in Web forms or signing up to newsletters/mailing lists.