Create a frombox

sithbit frombox create <from> [to_address] \
  [--keypair <keypair>] \
  [--stamps <count>] \
  [--skip-preflight]

to_address defaults to your own address (the recipient creating the frombox). --stamps defaults to 0 and prepays that many stamps at creation time. For example, a recipient prefunding a known sender with 5 stamps right away:

sithbit frombox create jane_doe@sithbit.com --stamps 5

Note: creating a frombox with --stamps 0 (the default) just registers a custom stamp price for that sender — it doesn’t grant any free sends yet. Use Add stamps afterward, or --stamps at creation time, to actually fund it.

Once created, the frombox’s stamp price can be changed later — see Update a frombox.