Why do my emails delete themselves automatically?

Some but not all emails I received are deleted automatically. They are not spam or junk, but they are no where to be found - not in the trash/deleted messages, inbox, junk or spam. I know I received them because they show on the iPhone notification screen, but when I click on them, they are not there at all. Can't find it on computer, yahoo web mail, or iPhone hand set. This has happened since about a week ago. Any idea why and how to fix this?

I recommend making sure your account is secure by checking all settings here:

If you find that content is truly missing from your account, please request a content restore here:

Hope that helps!

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