Syntax: @forward <msg> [on *<collection>] to <recipient> [<recipient>...]
Syntax: @resend <msg> [on *<collection>] to <recipient> [<recipient>...]
Both of these commands take the indicated message in your (or some other) message collection, and sends it on to the indicated recipients in some form.
@forward sends an entirely new message whose body is the original message (both headers and body).
@resend sends the original message, but with a header containing the lines
From: original-sender
To: original-recipients...
Resent-By: you
Resent-To: new-recipients...
If you prefer to have yourself in the From: line of messages you @resend, set the mail option `resend_forw (see "help @mail-options"). In this case, the message will instead have a header containing the lines
From: you
To: new-recipients...
Original-From: original-sender