I  am a new provider  and I have a few reviews for the last month . I recieved an email from a adult model mangement company in the San Fernando CA saying  something like I am what they are looking for , they asked if I am interested and send additional picture and phone number . The email seems legitim and the webpage and facebook page too.
It is that common for providers to recieve this kind of emails?
Actually I am really really interested but I am not sure if I will reply that email and if the "company" is not that good , where or how can I do casting for that??

San Fernando is the Porn Capital of the U.S. Most likely it's a Porn Company searching for new Girls for their Adult Films. Good Luck if you decide to go this Route. My opinion you're better off staying as a Provider. A lot less Hassle and Drama.

As providers, we get tons of unsolicited emails that may or may not be legit. Before you send any pictures, find out as much as you can about the company. Sending pictures specially if you don't show your face is very risky as it can lead to a variety of things, some agencies may even steal your pictures without your permission.

your regional board.  You might get an answer from someone else that may have been contacted by this company.  

If you have reviews on TER, you should contact admin, ask to have them linked to your handle, and ask for the limited VIP membership so you can read the juicy details of your reviews.

Swim

Model Mayhem is kind of a model and modeling services (photogs, cosmeticians, etc.) mall that seems legit to ME as an observer.

Are your current pictures watermarked?  They should be!  

Before sending pics to this new unnamed website ask for a copy of their boiler plate contract.  You probably do not want to give them carte blanche to use YOUR photos of YOU anyway THEY deem fit (to make a profit for them)