In the past couple days, I've received notes that I recently sent out to someone. But they are not the same as what I sent. For example, I replied to a question from a sender. A few minutes later, I got an email with the same subject line, the first couple words of what I'd written to them, but the rest was a different email that Macy's had sent me about my bank account. When I looked at my email online, I could find the Macy's email (and it's not spam), but I can't find it in the Mail application on my Macbook Pro, even when I search for it with the search tool. Is this some sort of virus? thanks for any insight.