Inbox search field defect
I am going to be nice and polite, although I don't want to be because the egregiousness of this defect warrants severe criticism. And that is, why on Earth would searching for specific senders in my Inbox produce a message saying 'search the web for [blank]? I am in my Inbox. I wish to search for email from a specific sender. If I wanted to search the web, I would have not been in my email account.
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Rick C commented
This should be an easy fix.