There are a lot of work-from-home job offers being sent by email. In general these offers make someone else money and there’s rarely any money at all to me made from home. It’s an old scam that existed before the internet.
What’s new is that emails are being sent that appear to come from legitimate employment agencies. What’s happening is that spammers are collecting names and email addresses from large job web-sites, then sending spam with forged "From" addresses.
It’s best to ignore unsolicited emails (spam).