I know you can have up to 4 storage groups and with in those storage groups you can have up to 5 mailbox stores. my question is the 4 storage groups you create does each one have a 16 gig limit?(which would mean 4 storage groups, at 16 gig a piece which will be 64 gig of email) Or it dosn't matter how many stores you have Exchange 2003 stanard is ONLY a 16 gig limit.