With regular expressions, it is possible to check if an email address, obtained via a form, is valid. Here is a function that checks if a string is only an e-mail address valide.function VerifierAdresseMail ($ address).
PHP script to test the validity of email addresses.
How can i check whether the email address is valid one ? If that id exist , mail would be sent successfully . Incase if the sending mail to an id fails , how can i identify the send mail failure in php ?