$myFile = "coro.txt";
	$fh = fopen('coro.txt', 'r');
	while( !feof($fh) )
		{$theData = fgets($fh);
		$to = $theData;
        	$subj  = $asunto; 
		$auto_msg_subj	= "Asunto que le quieras poner";
		$auto_mg_from	= "Tu nombre y direccion";
		$from	= $emailenvio; //Direccion que quieras poner
		$reply	= "";
		$cc  = "";
		$bcc = "";
		$body = $cuerpo;
		$headers  = "MIME-Version: 1.0\r\n"; 
		$headers .= "Content-type: text/html; charset=iso-8859-1\r\n"; 
		$headers .= "From: ".$from."\r\n"; 
		$headers .= "Reply-To: ".$reply."\r\n"; 
		$headers .= "Cc: ".$cc."\r\n"; 
		$headers .= "Bcc: ".$bcc."\r\n";
		//Aqui se manda el mail		
		mail($to,$subj,$body,$headers);	
		}

	fclose($fh);