Email spoofing refers to:

A.
The forgery of an email header so that the message appears to have originated from someone
or somewhere other than the actual source

B.
The criminal act of sending an illegitimate email, falsely claiming to be from a legitimate site in
an attempt to acquire the user’s personal or account information

C.
Sending huge volumes of email to an address in an attempt to overflow the mailbox or
overwhelm the server where the email address Is hosted to cause a denial-of-service attack

D.
A sudden spike of “Reply All” messages on an email distribution list, caused by one misdirected
message