26 replies to this topic

[skilletsteve]

what exactly are MX records?
do you need to have your own set of MX records for it to check against?

[John]

Im working on a whole validation class, here is my Email Validation

     /**

     *@param $Email is the email address you wish to validate

     *@return $result[0] will either be true or false. True

     *    meaning the email is valid - False meaning the email

     *    meaning the email is invalid.

     *@return $result[1] is a brief message explaining the result.

     */

    function VerifyEmail ($Email)

    {


        $result = array();


        #Use a regular expression to make sure the $Email string is in proper format

        #<username>@<domain>.<suffix> || <username>@<subnet>.<domain>.<suffix> 

        if (!eregi("^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$", $Email)) {

            $result[0] = false;

            $result[1] = "$email is not properly formatted.";

            return $result;

        } 



        list ($Username, $Domain) = split ("@", $Email);


        #Verify the MX record.

        if (getmxrr($Domain, $MXHost)) {

            $result[0] = true;

            $result[1] = "$email appears to be valid.";

            return $result;

        } else {

            #Establish a connection to the server.

            if (@fsockopen($Domain, 25, $errno, $errstr, 30)) {

                $result[0] = true;

                $result[1] = "$email appears to be valid.";

                return $result;

            } else  {

                $result[0] = false;

                $result[1] = "Cannot connect to the server.";

                return $result;

            }

        }

    } //End VerifyEmail

Usage:

    $result =  VerifyEmail ($Email);

    if($result[0]) {

        //email is valid

    }

[sh44n]

Nice one

[tmarsha4]

very cool, ill be using this for sure. thanks!

[matthewk]

Thanks, wanting to check it out.

[codelifter]

Will check it out.

[jenie_penny]

that is a great script, thank you for posting it!