[Dovecot] Server-side mail archiving - possible dovecot lda feature?

Hi Timo,

I have a question on the feasibility of adding the capability directly in dovecot LDA (or maybe this wouldn't be the correct place?) to provide a server-side mail archiving feature.

What I'd like is a simple way to define a maildir, ie:

vmail/archive/$user/Inbox and vmail/archive/$user/Inbox.Sent

And then have the dovecot LDA deliver a copy of all mail (incoming and outgoing) to this archive folder.

Is the dovecot LDA the best place for this to go? Or would an entirely new plug-in be more appropriate?

My boss may be willing to pay to have this capability added. I have investigated other third party solutions, but I would prefer something that is tightly integrated with dovecot.

I look forward to your response...

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Best regards,

Charles