The archiving capabilities are much richer and allow the administrator to bring archiving features directly to end users via IMAP. SMS messages are also archived automatically.
Technically all archived emails are always stored as .imap files which makes it possible to link the whole archive with a public folder. They also contain the Seen flag so they appear as read/unread in email clients.
New directory trailer path option works as an appendix to directory path so you can create e.g. this: C:\Archive\domain.com\john\Sent\2009-Jun\.
It is also possible to store all messages in the root of the user's folder or keep them in folders (Inbox, Sent).
Native integration with IMAP allows all users of WebClient and any other IMAP client to see a new Archive folder by default (or however named by the administrator). Users can then browse through their archive, but access to the archive folder is read-only so they cannot delete, flag or change the read status of messages.
Examples of time-based archive structure:
<Archive>\Inbox\2009-04\
<Archive>\Sent\2009-05\
or simply
<Archive>\2009\
with all messages included.
Archivist User Role
You have large variety of possibilities by using public folders in combination with Archive:
You can grant persons access to:
To grant access, do the following:
E.g.: C:\Program Files\IceWarp\Archive\
NOTE that is highly recommended not to use the "datetime" variables in the basic mail archive path. Use directory trailer path instead.
For information about "datetime" variables, refer to the Shared Server Variables section.
NOTE remember that archive folders are always read-only, when dealing with the rights.
Eventually, repeat this step for another users/groups.
For larger numbers of auditors or archivists, it can be useful to create groups with appropriate rights, assign individual persons to these groups and set permissions for the whole group at once.
Example
Part of the archivist mail folder tree with one domain and two account folders available:

Compatibility
Compatibility with the old archive is preserved. However .tmp (POP3) files will not be available in the new IMAP-based Archive. Only newly received messages will be properly converted. Old structures created in the mail folders will be visible but messages will have not the Seen flag so it will appear they have not been read.