dovecot - Jul 2019 - Backup method mail encrypted with mail_crypt Per user

Hi,

What would be a good backup method for mail stored encrypted with mail_crypt per
user(folder).
As the administrator does not have the key (the user has)

i'm thinking:

- the user must backup his/her email via the mail client, but as an admin you
want to be able to restore mail when needed on the server itself or on a new
server.

- the admin creates a backup of the vmail folder per user (is all the necessary
crypt information in it?) so when restored on a new server, could the user read
the emails with his/her password?
is it just a matter of restoring the vmail folder?

in other words: what would be needed to be saved in order to restore to a new
server

any recommendations on this topic?

Kind regards,
Zjemm

On 11.7.2019 18.18, mail at sjemm.net wrote:
> Hi,
>
> What would be a good backup method for mail stored encrypted with
mail_crypt per user(folder).
> As the administrator does not have the key (the user has)
>
> i'm thinking:
>
> - the user must backup his/her email via the mail client, but as an admin
you want to be able to restore mail when needed on the server itself or on a new
server.
>
> - the admin creates a backup of the vmail folder per user (is all the
necessary crypt information in it?) so when restored on a new server, could the
user read the emails with his/her password?
> is it just a matter of restoring the vmail folder?
>
> in other words: what would be needed to be saved in order to restore to a
new server
>
> any recommendations on this topic?
>
> Kind regards,
> Zjemm

rsync could be a good option here. Just "blindly" backup the files +
mail attributes.

Aki