Most vehicles are negative ground which means that the negative battery pole (marked with a minus sign -) of an automobile, boat, truck, RV, or other fossil fuel powered v â¦ ehicle is connected to the metal frame, engine, or chassis, of the vehicle.ind the cable that is connected directly to the frame or sub-frame of the car. If it is red, then Positive is ground; If it is black, then Negative is ground. More than likely (but not in all cases) the electrical system is Negative ground.
It is possible that you have exceeded the time or quantity of email sent, because most ISPs limit their user's access to their mail server by time or by the quantity of emails that can be sent per login, busy, firewall, etc.t is possible that you have exceeded the time or quantity of email sent, because most ISPs limit their user's access to their mail server by time or by the quantity of emails that can be sent per login, busy, firewall, etc.
The best time to send email is the early morning or evening. Emails sent in the early morning (between 6 and 7 am) and evening (around 8 pm) were the most effective at getting a response, with reply rates hovering around 45%. The graph above also reveals that much fewer emails were sent during these time slots.