[Dovecot] keep users from deleting email

[Adam Williams]

Charles Marcus wrote:
> Then you are using the wrong tool.
>
> For legal purposes, your message archives should be completely 
> separate from your normal mail store.
>
> Set up a parallel delivery system for your archiver.
>
Do you mean like, Postfix's "always_bcc = awilliam at mdah.state.ms.us" 
option?  But, then I'm doubling my data.  One copy is the user's email, 
and one copy for always_bcc.  Then I have twice the data to back up, 
more CPU cycles to compress it to tape, etc...