Employer tries to pay the papers scam

Dear teacher Maria me is hope you is have a nice weekend.me is want you to know that me and me family is happy that you is coming to teach us.this morning me is already go to travel agency office and me is already made the payment of you flight ticket and visa fees of US$3,590 and me is want you to know that the only fee the immigration is not allow me to pay for you is the DER deposit fee of US$765 they is say you as visa applicant is pay that one and they is say is against the Nigerian immigration law for me to pay it.me is want you to send them this deposit tomorrow morning with other documents they is need so that they is start work immediately on you papers ok.me is tell them that you is send it to them.me is hope you is send it to them tomorrow and me is want you to inform me when you is send them the documents so me is call them and confirm.me is attached our family picture and me is hope you is like us.me wife and kids are happy to see you picture and they is like you.CheersDr.Diego Sanchez