Create a report showing the top 10 largest mailboxes

Question:

I would like to know what report can give me the top 10 largest mailboxes in the organisation.

Answer:

The report template you are looking for is called Mailbox Storage Information and you will find it on the Templates > Storage menu. Information is dynamically collected through via PowerShell.

You will apply the following settings:

  • Selection tab: All organization mailboxes.
  • Group tab: No grouping.
  • Filter tab: N/A.
  • Options tab: Show only the 10 biggest mailboxes and sort them accordingly.
Options tab
  • Content tab: Set the detail level to Mailbox storage (item size and count).
  • Presentation tab: Display = Table (for a table only), Graph (for a graph only), Graph & Table (for both), Size in MB.
  • Output tab: Your own choice (Screen, Printer, Disk file, Email recipient, SharePoint, Database table).
Top 10 biggest mailboxes

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