Mail scram

If anyone sends you a large check, for no apparent reason, they most likely want you to deposit it in your bank. The bank may allow you to withdraw it before they fully clear it. The people that sent you the check then wants you to send them $XX. You go a head and do that. Then the check doesn't clear, the bank will then demand the full amount back. They could even get after you for depositing a frauduent check.

This is a common scam to send you the money and expect you to withdraw cash from your account to sent to them. But if you are smart you never send anybody any money until the check clears.

Most likely then you will find out the check is forged or stolen as in my case when I got it.

Just know it's not a good thing when people send you large checks, and expect you to send them cash in return.