Report Exchange Online Mailbox Quota Usage Over Set Threshold



Some Exchange Online mailboxes are quite small (2 GB for frontline users). Tenant administrators might want to monitor mailbox usage to make sure that quotas aren’t unexpectedly exhausted. This post explains how to use a PowerShell script to calculate the percentage of mailbox quota used and highlight the problem if a threshold is passed.

2 Replies

@Tony Redmond 

what happened to this feature.  I can no longer find it on the roadmap.  Any ideas?

What feature? This post covers a PowerShell script to report mailbox usage.