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stop emails not sent

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Hello, I'm getting hundreds of emails every day saying: A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: Can anyone please help me as its driving me insane as these are addresses I have not sent emails to

Hello, I'm getting hundreds of emails every day saying: A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: Can anyone please help me as its driving me insane as these are addresses I have not sent emails to

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Someone is using your email address as the return address of the junk mail they are sending. There is nothing you can do to stop it at this point. Be protective of your personal info and selective where you provide your email address.