Please note that your latest email system is causing so much confusion that it prevents proper housekeeping and lead to people abandoning their mails in the account instead of diligently housekeeping their mails. It results in wastage of storage servers (as happened in Gmail) at your end. For the sake of users and yourself, please return us the old format of sorting my senders subjects date etc... to facilitate our housekeeping and sorting.
the new format really suck. Yahoo should have fried the person or team incharge of changing the email software. It is so users unfriendly.