Why Use Confirmation Codes?
A confirmation code establishes two important facts. First, that you haven’t accidentally misspelled or mistyped your email address when registering, and second, that you want to sign up for a site — you’re not being registered there by someone else, perhaps as a prank. Using a code also helps ensure that you’re a real person and not a spambot — a program that signs up to sites in order to spread spam.
How are Confirmation Codes Generated?
Confirmation codes are usually generated by a function that’s part of the code handling registrations. The program randomly generates a string of alphanumeric characters (numbers and letters) and then sends this to you in your confirmation email. Sometimes you’ll be asked to enter the code by hand; alternatively, the code may be part of a hyperlink that you can click to confirm your account automatically.
Why Didn’t I Get My Confirmation Code?
If a site tells you that you’ll receive a confirmation code by email and the email doesn’t arrive, it may simply be that there’s a delay between you registering and the system sending your email. Most sites will tell you roughly how long you can expect to wait. Confirmation emails are sometimes mistaken for spam by overzealous email spam filters; check your spam folder to see if your email is there. If your email account has a space limit, your inbox may be full. Try deleting a few existing emails.