encrypted storage on the fly using user's password without storing password on the server

[dovecot.lists at graphyc.io]

Bump? Nobody using mail-crypt right now (with user keys encrypted by 
user's password to work transparently from, say, Thunderbird) who could 
share their config?

On 12/02/2020 11:54 pm, Alex Knowles wrote:
> Hi all,
> 
> I just joined the list. I've read through the mail-crypt plugin docs 
> here https://doc.dovecot.org/configuration_manual/mail_crypt_plugin/
> 
> I'm still unclear (I'm not an expert) about the following: Is it 
> possible to obtain on-the-fly encrypted storage using the user's 
> password without the password being stored on the server? Basically a 
> zero-knowledge solution.
> 
> Theoretically this should be possible as the user provides the password 
> when storing or retrieving emails. The above plugin docs don't make it 
> clear for me whether it is supported.
> 
> Could a kind clarify? I'd also be very grateful for a working conf as an 
> example.
> 
> Best wishes and thanks in advance,
> 
> Alex.