Microsoft announced details about how they will deploy the 100 GB mailbox quota to Microsoft 365 Business tenants. A new service plan is being deployed to tenants to liberate the additional 50 GB of quota. Having a larger mailbox quota delivers a fantastic opportunity to fill a mailbox with all sorts of digital debris, something that can cause problems in the era of AI. Perhaps enabling mailbox archiving for Business tenants to allow them to clear out old mailbox items would have been better?https://office365itpros.com/2026/08/21/100-gb-mailbox-quota-m365-business/