Question

Is there any way to check (through PHP) that whether any given email address is active (means is it currently being used & opened by anyone) or not (means it is blocked or no one uses/opens it, it’s inactive)?

Regards & Thanks in advance.

Answer 1

You can but have to use an API to an external service

There are a few email validation api’s out there, data8 got one. http://www.data-8.co.uk/integr8/services/email_validation.aspx

Here is a sample

function IsValid($email, $level)
{
  $params = array(
    "username" => "your-username",
    "password" => "your-password",
    "email" => $email,
    "level" => $level,
    "options" => $options
  );
  $client = new SoapClient("http://webservices.data-8.co.uk/EmailValidation.asmx?WSDL");
  $result = $client->IsValid($params);
  if ($result->IsValidResult->Status->Success == 0)
  {
    echo "Error: " . $result->IsValidResult->Status->ErrorMessage;
  }
  else
  {
    // TODO: Process method results here.
    // Results can be extracted from the following fields:
    // $result->IsValidResult->Result
    //   Contains a status code indicating if the email address could be validated.
  }
}