Check if email exist php

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If you need to make super sure that an E-Mail address exists, send an E-Mail to it. It should contain a link with a random ID. Only when that link is clicked, and contains the correct random ID, the user’s account is activated (or ad published, or order sent, or whatever it is that you are doing).

This is the only reliable way to verify the existence of an E-Mail address, and to make sure that the person filling in the form has access to it.

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