Because all messages are archived in this setup, it’s a possibility to reduce the storage capacity requirements as a bonus.
The following settings could be set in /etc/zarafa/archiver.cfg:
stub_enable = yes
stub_after = 30
stub_unread = no
delete_enable = yes
delete_after = 365
delete_unread = no
cleanup_follow_purge_after = yes
This causes the archiver to stub all read messages 30 days after they were delivered and delete read messages 1 year after they were delivered. Of course the delete step can also be disabled. The cleanup_follow_purge_after is set to yes to make sure a cleanup run won’t delete items from the archive because they don’t exist in the primary store anymore.
