Rule 163 AuthenticationI1
England and Wales
(1)
A document or information given, delivered or sent in hard copy form is sufficiently authenticated if it is signed by the person sending or supplying it.
(2)
A document or information given, delivered or sent in electronic form is sufficiently authenticated—
(a)
if the identity of the sender is confirmed in a manner specified by the recipient, or
(b)
where no such manner has been specified by the recipient, if the communication contains or is accompanied by a statement of the identity of the sender and the recipient has no reason to doubt the truth of that statement.