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⬅️ Previous capture (2023-07-10)
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I was looking at the B spec and I found the sender line a bit surprising. would we not be able to skip that and trust the sender certificate instead? The sender line could of course be verified the sender certificate but for simplicity this can be skipped entirely. I guess it could be added by the server on arrival instead or stored as metadata
2023-05-16 · 2 months ago
i believe that this is the intention. The reason to use sender lines is when forwarding mail, or optionally when storing it.
This could be clarified in the spec, but is made explicit in best practices.