Quoting Philip Hazel:
> The *only* reason for the existence of $received_for is so that it can
> be used in the value of received_header_text.
>
> There is already a variable called $recipients, but it is set only in
> situations (documented) where it is OK for all the recipients to be
> know. Expansion of received_header_text is not one of those situations.
ok, but spool_mbox has nothing to with received headers, so I wonder why
Tom used received_for there, when $recipients is available and doing the
right thing.
