piliffe

First off - thanks for having a PHP noob such as myself here. I am expecting to learn great things in the coming months. http://piliffe.contrasthost.com/notemate I've been working on this small project. I'm currently trying to implement a simple security measure. Basically on the protection page: http://piliffe.contrasthost.com/notemate/pages/protection.php Users need to be able to submit their email address to be "added" to the email protection database. Currently the email protection database is a flat file named emaildb.txt. I don't just want users to be able to add their email address by simply typing their address and pressing submit. I want an email sent to the address they supplied asking them to verify the email address by pressing a link within the email. When the link is pressed it takes them to a page on the NoteMate website and says the email address has been verified and automatically adds their email address to the flatfile. As simple as this may sound I can't seem to be able to be able to create a script capable of doing this. Also on the protection page is the same form for users to do the same as written above to remove their email from the email protection database. Simply supplying and verifying the email address will remove it from the flat file automatically. If anyone can please help me with this I will be so very appreciative. Thank you for your time.