What are the current 'best practices' to maintain a Microsoft Exchange 2003 server, as part of SBS 2003.
The mailbox store is now increasing towards the 75GB limit and running the exchange task wizard to remove older users seems to have little impact on the database size. Is there a deeper process that can be run to actually reduce the exchange database size and also permanently delete old users.
Often even when a user is removed, Exchange still seems to remember that their email address is in use within the organisation and cannot be re-used.
What is therefore the best route forward to effectively manage the Exchange Information Store and help reduce the size, apart from enforcing mailbox size limits?