If you get any unsolicited email with some sort of link telling you you've gotten something for free it's ALWAYS a scam. I can't believe people actually still fall for these. Hasn't everyone learned if it's too good to be true...it is! Be vigilant crypto is littered with scammers.
The users that are new to the market usually fall for these scams as they think it will be some sort of airdrop 
. Scammers are finding new ways and you need to be aware of everything that is going on in this market and i recently joined a group to ask some questions about their project and i got over ten direct message claiming it to be projects customer service and they usually impersonates the real admin and if you are new, you will fall for these scams.If I received unsolicited email, I directly put it into trash and delete. But not all people do that as sometimes the subject title is very tempting especially if they see free money. So usually, they will open it up and try to check the link. And checking the link itself sometimes will make your computer vulnerable depending on what coding these scammers made. They will never get tired of trying because that's their way of screwing money from naive users.