When a mailbox is close to its maximum capacity, individuals will receive emails and in-app messages. If the mailbox exceeds its capacity, you won't be able to send or receive messages.
The easiest way to check the current size of your mailbox by logging into Outlook Web Access. Follow the steps below.
Outlook Web Access
In Outlook Web Access (OWA)
- Log in
- Click the Gear icon at the top right
- Click General, then Storage.
You’ll see your total free storage and a breakdown of your usage by folder and type.
