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PHP : Powerfull testing mails

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  1. // PHP.ini : allow_call_time_pass_reference = On
  2. // somenone can override this ?
  3. function neo_mailCheck($Email){
  4. 	// email well formatted ? can use SANITIZE stuff
  5. 	if(!preg_match('`^[[:alnum:]]([-_.]?[[:alnum:]])*@[[:alnum:]]([-_.]?[[:alnum:]])*\.([a-z]{2,4})$`', $Email)){
  6. 		exit('Email adress '.$Email.' not well formatted');
  7. 	}
  8. 	// Get domain
  9. 	list(,$domain ) = split('@',$Email);
  10. 	// Cherching data MX in DNS
  11. 	if (getmxrr($domain, $MXHost)){
  12. 		$ConnectAddress = $MXHost[0];
  13. 	} else {
  14. 		$ConnectAddress = $domain;
  15. 	}
  16. 	// Creating connexion on smtp port (25)
  17. 	$Connect = @fsockopen($ConnectAddress,25,&$errno,&$errstr);
  18. 	if($Connect){
  19. 		// test return 220
  20. 		if(preg_match('/^220/', $Out = fgets($Connect, 1024))){
  21. 			fputs ($Connect, "HELO {$_SERVER['HTTP_HOST']}
  22. ");
  23. 			$Out = fgets ( $Connect, 1024 );
  24. 			fputs ($Connect, "MAIL FROM: <{$Email}>
  25. ");
  26. 			$From = fgets ( $Connect, 1024 );
  27. 			fputs ($Connect, "RCPT TO: <{$Email}>
  28. ");
  29. 			$To = fgets ($Connect, 1024);
  30. 			fputs ($Connect, "QUIT
  31. ");
  32. 			fclose($Connect);
  33. 			// If command RCPT TO returns 250 ou 251 (cf: RFC)
  34. 			// Son email exist
  35. 			if (!preg_match ('/^250/', $To) && !preg_match ('/^251/', $To)){
  36. 				// Adress rejected by server
  37. 				return false;
  38. 			} else {
  39. 				// Adress accepted by server
  40. 				return true;
  41. 			}
  42. 		} else {
  43. 			// Server not answered
  44. 			return false;
  45. 		}
  46. 	} else {
  47. 		// Login on mail server impossible
  48. 		// You can see error with this :
  49. 		// echo $errno."-".$errstr;
  50. 		return false;
  51. 	}
  52. }

URL: http://www.giacomel.fr

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