Forward to recipient,...
in the first line of her mailbox file. This will send all incoming mail
to the specified list of recipients. Alternatively, she might create
a .forward file in her home directory, which contains the
comma-separated list of recipients. With this variety of forwarding,
all lines of the file are read and interpreted.
Note that any type of address may be used. Thus, a practical example of a .forward file for vacations might be
janet, "|vacation"
The first address delivers the incoming message to janet's
mailbox nevertheless, while the vacation command returns a short
notification to the sender.