Hacked
I have received many post master delivery failure notifications for mails that were not sent by me. My initial thoughts that someone used my mail id in the from mail id which caused it. But on reviewing the details, I found that those mails were sent to multiple contacts who are in my contacts. Also, these contacts to whom the mails have been sent do not have anything else in common, eliminating the point of an external source for this mail ids.
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David John Robertson
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