I got a similar message about a ad I posted on CL from this Dean character. This time he (or she, it, who knows?) used a different phone number 731-577-9795. He appears to be a scammer, phisher whatever. The message was the same as yours almost:
"hi my name is dean and im messageing you about your ad could you please email me more information on it at
[email protected]. cash in hand. thanks"
Does this sound familiar. I actually sent an email. *Mistake* The email address is a fake. (Probably stolen) My message was returned. I no longer trust anything with a Gmail account. It seems a lot of scammers are taking advantage of Gmail's apparent lax security and exploiting it. The only thing the guy has is too much time on his hands.