I am in the process of migrating from Exchange 2003 to Exchange 2007 via Windows SBS migration. I have 3 users whose mailboxes are over the default maximum of 2GB. I had removed the restriction in Exchange 2003, but came back with the migration. They cannot send or receive emails now. I have removed the limit on the Exchange 2007 side, but I still can't send emails to them. Is there a way to force the limit removal?