On 16/02/2023 07:18 EET mailinglist-subscriptions mailinglist-subscriptions@protonmail.com wrote:
Hi,
I am using dovecot 2.3.16, along with postfix and a PostgreSQL database for managing virtual accounts.
I'd like to start using the mail-crypt plugin. However, I'm having a bit some difficulty understanding the documentation at
https://doc.dovecot.org/configuration_manual/mail_crypt_plugin
to reach my goal. I plan to ask questions about those issues by starting new threads in this mailing list. But before I even come to that, I'd like to investigate the following:
The above documentation only addresses a clean install and doesn't seem to mention encrypting already existent unencrypted mails, like my server has. Is it possible to encrypt those before I start using the mail-crypt plugin, such that it will be able to decrypt those messages as well?
If it is, I am assuming that how I would go about achieving that will be very dependent on the ultimate configuration I have in mind (pub/priv keys, etc.). So I don't expect a full-fledged guide. However, if you could perhaps give a general overview of what would be needed to achieve this, I would very much appreciate that.
Thank you.
It will be easiest to do migration to new server, then the data will get encrypted while migrating. It is possible to write a script to do this, but will be much more hassle than migration.
You might even be able to do it for one user at a time, by doing migration from maildir to maildir and then moving the new maildir over the old one.
Aki