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I got a few Dr. Oz emails and never used my address either. For about a week, I got nothing but crap. It stopped eventually.
 
I just got a Dr. Oz spam this morning on my iCloud email account.
 
I'm getting the Dr Oz plus a lot more. I rarely ever receive any spam, but the past couple months (since October) it's out of control. I'm seriously considering switching emails if this doesn't change. Also spammers should be hanged.
 
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