WildPacket wrote:

In outlook 2007, there is an option to set Message Expiration. The
default is 180 Days. Is this to say that after 180 the message will
no longer be accessible to the recipient? Will it be deleted? Will
this work the same for Outlook or Exchange rcpts as well as other
email / internet rcpts?

Expired messages are removed only if you use Autoarchive to do so.
Otherwise, its header line will change font in the folder's contents list,
acquiring an overstrike, but you can adjust that, if you want.
--
Brian Tillman