Own Mail: PGP running on local server; Is it secure

[sam_uk at riseup.net]

Hi I spotted this project: https://www.own-mailbox.com/#HowWork

Their aim seems to be to make PGP more accessible by selling a  
pre-configured plug and play email server for non tech people to use.  
I'm considering getting one but I wondered if their proposed  
architecture is good?

They are also proposing a HTTPS web interface, I guess this relies on  
trusting the certificate authority?

Is this a good project on balance?

Thanks

Sam

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