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While shared mailboxes are great for organizations that require multiple people to collaborate on a particular project, there are a lot of security issues to consider. For instance, as a business grows, a number of new employees may unintentionally inherit access rights over certain shared mailboxes. And if these mailboxes receive business-critical information that's for the C-Suite's eyes only, those inherited access rights could cause problems. Admins need insight into the permissions users have over shared mailboxes to avoid security issues and keep confidential data in the right hands. Using PowerShell for this, however, can be time-consuming and complex.
Luckily, Exchange Reporter Plus has got your back. View the access rights (full access, send as, delete item, read, change owner, or external account) employees have over shared mailboxes, right down to individual folders, using this comprehensive reporting, change auditing, and monitoring solution.
Report on and audit Exchange Online using Exchange Reporter Plus.
Shared mailbox permissions
Get granular details about users' and groups' shared mailbox permissions. With Exchange Reporter Plus, you can:
- View the name of the users and groups.
- Discover the access rights they have over select shared mailboxes.
- Detect if the permission was inherited or assigned.
- View if "Deny permissions" is set.
- Filter permissions by type, including full access, delete item, read, change owner, send as, or external account.

Shared mailbox folder permissions
View the permissions users and groups have over shared mailbox folders. With Exchange Reporter Plus, you can:
- List the users and groups with permissions.
- View the access rights they have.
- Identify the folder to which they have access.
- Customize this report to be run for select folders of particular shared mailboxes.

This way, you can easily view information about users' and groups' access rights over shared mailboxes in your organization.
Exchange Reporter Plus is a web-based analysis, monitoring, and change auditing tool for your Exchange servers, including versions 2003, 2007, 2010, 2013, and 2016. It features over 200 unique reports on various Exchange entities such as mailboxes, public folders, Outlook Web Access, and ActiveSync. This all-around reporting solution also has customizable reports that display message details based on keywords in their content, track room mailbox usage, as well as break down email response times. Generate reports and export them to a destination folder and also have them emailed to you at specified times in several file formats, including CSV, PDF, XLS, and HTML. Configure alerts in Exchange Reporter Plus for instant notifications on critical changes that require your attention. Download a free trial today to explore all these features.