No recibi el correo electronico
What is your email.
They are asking .. "what the e-mail adress of your best friend?"x
Which is you're best friends email address?
they are asking. What is your friends email address?
What is your best [female] friend's e-mail.
Usemos / empleemos el correo electrónico
El Correo Gallego was created in 1878.
El Correo was created on 1910-05-01.
"Voy a mandar un paquete en el correo"
El Robo al tren correo was created in 1964.