[Dovecot] data retention and e-discovery rules

Hello All,

I am in the United States where we have e-discovery rules. Some organizations have to retain data for a certain amount of time, others are required to have a data retention policy.

This means that while it should probably be possible for a user to "delete" an email so they do not see it. The server needs to store it, possibly in a tree that mirrors the folder setup of the user (so if it is in "Sales" folder, it should move to namespace "hidden", or similar, in folder "Sales").

Is there anything like this in dovecot? Is it possible to use cron jobs to see when the message was deleted (Maildir) and erase it based on policy? (Python scripts are fine if the users password isn't needed.)

Thank you, Trever Adams