Send activation email to user

Anteshine

New Member
How would I do to check if a email actially exists? Cant understand how sites do to send mails with a unique link that the users clicks to validate that he is the owner of email =/Make a 2 new columns called activationkey and activated and store some random string, send an email with the activationkey, and update the users activated =1 that match that activation link\[code\]register.php?a=activate&key=9cdfb439c7876e703e307864c9167a15\[/code\]Any better ideas?
 
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