One way that many customers are doing this is to use
Data Protection for Exchange COPY type backups.
You can create a separate management class for COPY type backups
and bind the COPY type backups to that special management class.

Another way is to create a separate NODENAME with different
policy sets and run occasional backups using that alternate NODENAME.

You cannot use backupsets for DP/Exchange data.

Thanks,

Del

----------------------------------------------------

"ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU> wrote on 05/09/2007
01:14:22 PM:

> Question from our Exchange admin. Is there a way to keep a backup of an
> Exchange Information Store for however long he needs it? It is in a
domain
> that is set up for 14-day retention. I told him that I didn't think
there was
> anything I could do but halt expiration for the whole enterprise, which
would
> be ridiculous. So...  :-)
>