Oh my dear guys, this new Yahoo mail app is ridiculous. Primarily the search. If you had a keystring of words you could search before and an email with those strings would appear, now all I get is any email that has at least just one of those words. Effectively making you sort through hundreds if not thousands of emails to find the one email you knew you use a certain phrase, especially if it was a long time ago. So not happy. So many other apps let you filter from sender, not just seeing a whole list of senders. There really should be filters in a search, it's just basic common sense. If this doesn't get fixed I guarantee you people will migrate.