openemail senders

Resolves a sentence or two about the organisation behind the domain of an address, the line the reading pane shows under an unfamiliar sender. Only the domain is read, so any address on it gives the same answer, and what is known is kept for the whole workspace.

A domain nobody has looked up yet is a 404. research looks it up.

Searches the web for the organisation behind the domain of an address and keeps what it found for the whole workspace, as the reading pane does the first time it shows a sender. A domain that was looked up before is answered from what was kept, and nothing is searched again.

Only the owner of the workspace may look senders up, with a key or an app that is not limited to particular addresses or domains: anything else is a 422 capability_unsupported or a 403 owner_only. A workspace looks up at most 200 senders a day, and the next one is a 429 research_limit_reached. A domain nothing could be found about is a 404.