Question : Problem: Exchange unmounted every morning

Every morning the users cannot connect to there mailbox as the exchange server has dismounted the store. All i have to do is mount it again and everything is working again.

The server is a SBS 2003 with 25 clients and nothing much special is running on the server. The roles are:

File Server, Print Server and Backup (Backup Exec 11d)

Dunno if this can be from backup exec. I have all succesfull backups. I dont backup mail level but the whole store only.

Answer : Problem: Exchange unmounted every morning

Depending on your version of Exchange:

2003 Standard has a default limit of 18Gb but can be raised to 75 GB by editing the registry.
2003 Enterprise has no limit (although I think it is 8000GB, which is in a real sense no limit)

Have a read here:

Exchange Server 2003 Database Size Limit Configuration and Management
http://technet.microsoft.com/en-us/library/aa998066.aspx

How can I change the store limits in Exchange 2003 SP2
http://www.petri.co.il/change_store_size_limits_ex2003_sp2.htm