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Originally Posted by OfMacAndMen  Here is the emailed report that brought this to my attention. |
Those are senders 'TO' you not from you or via your server.
You might also want to check it's not an open relay with the link that randall has posted, there's plenty of other tests on the internet for that, do a google. This has also been covered in the forums once or twice, do a search for some info.