Yeah - not a lot you can do other than junk them!
I had the same being sent with my website address - my ip looked into it but it wasn't coming from my server so not a lot could be done!
Using two LS3060's and an ex 3020 user
Please note I am not employed by HPC, any advice or recomendations I give are based on my own experience and are not necessarily the same as HPC's. First point of contact on any hardware issues should be with HPC