No, doubt it is fraud.

you can find it fraud, by following checks

1. They send from normally Hotmail, Yahoo , Gmail or any of the
FREE services emails.
2. It originates from African coutnries,,Nigeria Kenya etc. The
sender name also having a typical African flavour
3. They dont give any profile of Job to yu. Rather they will be
"keen" to know whether you are ready to take up this job