thank you all. yes this does look like a scam aimed for affiliation earning. I have received 5+ e-mails from different people reporting that they received similar messages.
If you received a message and still don't know what to do . simply ignore it, if you have paid for "certified domain appraisal" then issue a payment dispute as soon as possible.
On side note: do you think I should still put my domain for auction? is it worth it? what do you think..