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Re:Launch HN: Plum Mail (YC S20) – Email alternative for gro... by jve on Friday August 21, 2020 @05:34PM (#24239099)
> email addresses are just a user identifier

Email as a protocol I suppose. On top of which some other protocol implemented to provide additional features.

Thanks for doing it.

Re:Launch HN: Plum Mail (YC S20) – Email alternative for gro... by richardesigns on Friday August 21, 2020 @05:58PM (#24239307)
Sound summary. You're welcome.