I made an "unsubscribe" page where customers can fill in their e-mail.
On submit (unsubscribe button) they 'll be directed to the "thanks" page.
How can I check if the e-mail really exist in my database ?
(Those customers are not logged in, they have to hit the link in the newsletter)
When the e-mail doesn't exists, a message should appear.
where emailaddress = '"& request.form("emailaddress") &"'
of course you need to clean for injection but that's the basic query.
assuming that link unsubscribe in your email is asp page and look like : email@example.com
On your asp page run database verification for this particular email and if it exist display thank you message, if not say sorry email does not exist.
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