AT&T Yahoo Mail is received and than it goes to trash folder on it's own. After one day in the trash folder, the email disappears. Can't find check box to leave email on server. Same happens on iPhone 5 and Mac lap-top. No filters. Apple says it is not hardware problem. Problem appears to be with Yahoo email server.
I'm sorry to hear that your email is deleting seemingly by itself. If you don't mind, please send us a private message by clicking here so we can investigate further.
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