Email forwarding generically refers to the operation of re-sending a previously delivered email to an email address to one or more different email addresses.
The term forwarding, used for mail since long before electronic communications, has no specific technical meaning,[1] but it implies that the email has been moved "forward" to a new destination.
Email forwarding can also redirect mail going to a certain address and send it to one or more other addresses. Vice versa, email items going to several different addresses can converge via forwarding to end up in a single address in-box.[clarification needed]
Email users and administrators of email systems use the same term when speaking of both server-based and client-based forwarding.
[forwarding is] a fuzzy (non-technical) term in SMTP