Parcel could write a new message or a reply, but not forward one. f, as in Gmail, forwards the open thread's newest message, and a Forward button beside each message's Reply buttons forwards that one; the palette lists it too. The draft is to no one, its subject gains "Fwd: ", and the message follows whole under Gmail's "Forwarded message" heading. It keeps the thread's In-Reply-To and References, as Gmail does, so the forward stays in the thread. The message's files are read through the reader's fetcher and join the draft as chips; the card says how many are on their way and does not send until they have come. Search's "search older mail" moves from f to F.