Have a look at https://mailu.io/ and https://docs.mailcow.email/

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This! OP is asking the right questions, but making a copy of your passwords does not cut it. Find a place to backup ALL your important data (that will be accessible when the house burns down).

You see, if you don’t agree that AI coding is great actually then you are simply not expert enough.

This post should be in the dictionary under Chesterton’s fence.