Please see our Kerio Connect 9.1 beta for Remote Archiving per domain.
seems like a great idea.
i'm a fairly new reseller of kerio products and people love it but i feel like these accounts will slowly come to an end. customers are demanding greater security and they're wondering why they can login to their email address from anywhere without any warnings or prompts to continue.
webmail should be protected, maybe even outlook's connector and also phone config should be notifying an administrator to approve deviceid's, as in, allow it in, jail the email and don't show the new set up any existing emails until it's been verified by an admin that it is allowed.
this is completely necessary and also, delegation should provide access to everything, including sent email.