maxim matyukhin

Другой способ, использующий сокеты.
<?

/*
by: jon s. stevens jon@clearink.com
copyright 1998-1999 jon s. stevens, clear ink
this code has all the normal disclaimers.
it is free for any use, just keep the credits intact.
*/

function validateemail ( $email )
{
global $server_name;
$return = array ( false, "" );
list ( $user, $domain ) = split ( "@", $email, 2 );
$tld = $domain;
if ( checkdnsrr ( $tld, "mx" ) )
{
if ( getmxrr ( $tld, $mxhosts, $weight ) )
{
for ( $i = 0; $i < count ( $mxhosts ); $i++ )
{
$fp = fsockopen ( $mxhosts[$i], 25 );
if ( $fp )
{
$s = 0;
$c = 0;
$out = "";
set_socket_blocking ( $fp, false );
do
{
$out = fgets ( $fp, 2500 );
if ( ereg ( "^220", $out ) )
{
$s = 0;
$out = "";
$c++;
}
else if ( ( $c > 0 ) && ( $out == "" ) )
{ break; }
else
{ $s++; }
if ( $s == 9999 ) { break; }

} while ( $out == "" );
set_socket_blocking ( $fp, true );

fputs ( $fp, "helo $server_name\n" );
$output = fgets ( $fp, 2000 );
fputs ( $fp, "mail from: <info@" . $tld . ">\n" );
$output = fgets ( $fp, 2000 );
fputs ( $fp, "rcpt to: <$email>\n" );
$output = fgets ( $fp, 2000 );
if ( ereg ( "^250", $output ) )
{
$return[0] = true;
}
else
{
$return[0] = false;
$return[1] = $output;
}
fputs ( $fp, "quit\n" );
fclose( $fp );

if ( $return[0] == true )
{ break; }
}
}
}
}
return $return;
}
?>