Hai,

Do you have advice about Dovecot plugins for mail encryption:

https://wiki2.dovecot.org/Plugins/MailCrypt

https://0xacab.org/riseuplabs/trees

I like NaCL based encryption but the MailCrypt plugin is better because it's maintained by Dovecot developers (is this correct?)

Hard to understand MailCrypt docs so may I ask, may I provide per user encryption? I don't like global because I want every user to have different encryption based on their password. But I don't see the useful of per-folder encryption. Docs for TREES are easier to understand it will work on a per-user encryption using the user password to decrypt the needed keys.

How about indexing? Does native fast Dovecot indexing must be turned off for one of these or both? Is this a big performance hit? And how to turn off indexing on a per-user basis?

Thank you so very mcuh


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