Divide & Conquer

	$popusuario = "usuariogmail";
	$poppassword = "passdecuentagmail";
	$popservidor = "{pop.gmail.com:995/pop3/ssl/novalidate-cert}INBOX";
 
	echo "Conectando a gmail... ";
	$stream = imap_open($popservidor,$popusuario,$poppassword);
	if($stream){
		echo "OK";
		$cant=imap_num_msg($stream);
		for($nm=1;$nm<=$cant;$nm++){
			$asunto="";
			$header = imap_header($stream, $nm);
			$from=$header->from;
			$from=$from[0]->mailbox;
			$asunto=$header->subject;
			$fecha=$header->date;
			//imap_delete($stream,$nm);//Marca el mail para ser borrado
		}
		//imap_expunge($stream);//Borra los mail marcados para borrar
		if($cant==0) echo "No se encontraron mails nuevos";
	}else{
		echo "ERROR";
	}
	imap_close($stream);
	echo"Desconectado...";