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by estimator7292 262 days ago
Is email immutable? Honestly I haven't looked into it very much, but as an email self-hoster I do know that i have the ability to decrypt any email in any user's inbox. I presume I could also edit and re-encrypt them, but I don't really know.

But as in all cases, you can only be truly sure no one is tampering if you don't give it to anyone else.