“Inherently” means essentially “no matter how you do it”. If you use an encrypted email provider to send a message to another user on another encrypted email provider, it’s perfectly secure. Ergo, it’s not “inherent”.
Full E2E encryption was only implemented recently by certain providers within their own domains
It definitely works across domains. All you have to do is point your domain at your preferred secure email provider.
It’s not inherently insecure. There are secure email services but all parties have to be using it.
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Exactly, that was my point. That means it is not inherently insecure.
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“Inherently” means essentially “no matter how you do it”. If you use an encrypted email provider to send a message to another user on another encrypted email provider, it’s perfectly secure. Ergo, it’s not “inherent”.
It definitely works across domains. All you have to do is point your domain at your preferred secure email provider.
It doesn’t need to.