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I have been running my own mailserver with postfix and dovecot for some years now.
The mails are stored unencrypted on the server. Is there a possibility to encrypt and decrypt the mails on the server as soon as a user logs in with the password?
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I have been running my own mailserver with postfix and dovecot for some years now.
The mails are stored unencrypted on the server. Is there a possibility to encrypt and decrypt the mails on the server as soon as a user logs in with the password?
0
You can either use the OS encryption options (e.g. dmcrypt on Linux) or plugins to your server programs, like the scrambler plugin for Dovecot.
The plugin is restricted to a specific software, but in contrast do disk encryption each user has their own encryption key (derived from their password), so not even you can read the mails of your users.
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Yes it's possible but it comes with it's own complications. The best example I know is: