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php Programming Glossary: checkdnsrrHow to validate an email address in PHP [duplicate] http://stackoverflow.com/questions/12026842/how-to-validate-an-email-address-in-php you can check whether the domain defines an MX record if checkdnsrr domain 'MX' domain is not valid But this still doesn't guarantee..
Using MX records to validate email addresses http://stackoverflow.com/questions/1976712/using-mx-records-to-validate-email-addresses the non spam messages not stored . Proposal Use php's checkdnsrr preg_replace ^. @ '' _POST 'email' 'MX' to check the email domain.. as before for addresses that do resolve according to checkdnsrr . I have read and i am sceptical about this myself that you.. i will have bigger problems than a contact form anyway is checkdnsrr going to encounter false positives negatives Would there be..
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