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Reference

Mailbox

Last updated Inventory Exchange

AI summary

Rencore Governance tracks all your Exchange mailboxes, including user, room, and equipment types, as part of the Exchange inventory. The system monitors 29 properties in seven categories: mailbox activity and usage, storage and quota information, security and compliance data, and configuration settings. You can configure scanning schedules and segment mailboxes by type, such as shared or user-owned.

All Exchange mailboxes of your users, rooms & equipment

Part of the Exchange inventory.

In Rencore Governance

The Mailbox inventory page in Rencore Governance: counts, trend, violated policies and the list of objects
The inventory page in a Rencore demo Environment, captured October 2026.

Scan settings

Default scanning interval Allowed scanning intervals Data removal during incremental scan
Monthly Daily, Weekly, Bi-Weekly, Monthly, Never, Initial Yes

Properties

29 properties in 7 groups. Open a group to see its properties.

Name and identity 5
Property Type Description Automation placeholder
Deleted user name String {{Mailbox.DeletedUserName}}
Display Name String The full name of the user. {{Mailbox.DisplayName}}
Email String Email is the email address of the user {{Mailbox.Email}}
Id String {{Mailbox.MailBoxId}}
User name String Email address of the user. {{Mailbox.UserName}}

Activity and usage 7
Property Type Description Automation placeholder
Deleted Item Count Int32 Total number of deleted items in the mailbox {{Mailbox.DeletedItemCount}}
Item Count Int32 The total number of items in the mailbox. {{Mailbox.ItemCount}}
Last Activity Date DateTime Date the mailbox had an email send or read activity. {{Mailbox.LastActivityDate}}
Last scan update DateTime Shows when this object was last updated in a scan. If an object is found during a scan but no property has been changed this date will not change. {{Mailbox.LastModifiedTime}}
Read Count Int32 Mails read in report period. {{Mailbox.ReadCount}}
Receive Count Int32 Mails received in report period. {{Mailbox.ReceiveCount}}
Send Count Int32 Mails send in report period. {{Mailbox.SendCount}}

Dates and scanning 2
Property Type Description Automation placeholder
Initially Scanned DateTime Shows when this object was initially found in a scan. {{Mailbox.CreatedTime}}
Deleted User Deleted user Deleted user connected to the mailbox {{Mailbox.DeletedUser}}

Security and compliance 3
Property Type Description Automation placeholder
Risk Score Int32 Stores risk score {{Mailbox.RiskScore}}
Risk Score Update DateTime Stores risk score update {{Mailbox.RiskScoreLastUpdate}}
Risk Score Value String Stores risk score value like Low_Low {{Mailbox.RiskScoreValue}}

Storage, licences and cost 9
Property Type Description Automation placeholder
Deleted Item Quota Int64 Maximum storage size for deleted items in the mailbox {{Mailbox.DeletedItemQuota}}
Deleted Item Size Int64 The total size of all deleted items in the mailbox {{Mailbox.DeletedItemSize}}
Issue Warning Quota Int64 This value sets the maximum storage limit before a warning is issued to the user. If the mailbox size reaches or exceeds the value specified, Exchange sends a warning message to the user. {{Mailbox.IssueWarningQuota}}
Percent of prohibit Send Quota Double Percentage reached for maximum storage until mailbox can not send any mails anymore because of reaching storage quota limit. {{Mailbox.PercentIssueSendQuota}}
Percent of prohibit Send/Receive Quota Double Percentage reached for maximum storage until mailbox can not send or receive any mails anymore because of reaching storage quota limit. {{Mailbox.PercentIssueSendReceiveQuota}}
Percent of prohibit Issue Warning Quota Double Percentage reached for maximum storage until warning will be shown that mailbox is reaching storage quota limit. {{Mailbox.PercentIssueWarningQuota}}
Prohibit Send Quota Int64 If the mailbox size reaches or exceeds the specified limit, Exchange prevents the user from sending new messages and displays a descriptive error message. {{Mailbox.ProhibitSendQuota}}
Prohibit Send/Receive Quota Int64 If the mailbox size reaches or exceeds the specified limit, Exchange prevents the mailbox user from sending new messages and won't deliver any new messages to the mailbox. Any messages sent to the mailbox are returned to the sender with a descriptive error message. {{Mailbox.ProhibitSendReceiveQuota}}
Storage Used Int64 Total storage used. {{Mailbox.StorageUsed}}

Settings 1
Property Type Description Automation placeholder
Has Archive Boolean Shows if the mailbox has an online archive enabled {{Mailbox.HasArchive}}

Other properties 2
Property Type Description Automation placeholder
User User Exchange mailbox of the user {{Mailbox.User}}
User purpose String States if the mailbox belongs to a user or is a shared mailbox. Default scanning interval: Initial. {{Mailbox.UserPurpose}}

Relations

Relation Connector Description
Redirect rule Exchange All registered Exchange mailbox redirect rules
Deleted user Microsoft 365 All users that have been deleted from your tenant
User Microsoft 365 All users registered in your tenant (internal, external)

Segments

Segment Description
Shared mailboxes Shows mailboxes shared by multiple users
User mailboxes Shows mailboxes owned by single users

Actions

This object does currently not have any actions.

Policy Severity Description
Mailboxes with external redirect rules High Shows mailboxes which have redirect rules that redirect to external domains

Frequently asked questions

What is the mailbox object in Rencore Governance?

All Exchange mailboxes of your users, rooms & equipment. Mailbox is an object type in the Exchange inventory of Rencore Governance.

Which properties does Rencore Governance collect for mailbox?

Rencore Governance collects 29 properties for Mailbox, such as Initially Scanned, Deleted Item Count, Deleted Item Quota and 26 more.

Which policies check mailbox objects?

1 built-in policy checks Mailbox objects, such as Mailboxes with external redirect rules.

How often is mailbox scanned?

By default monthly. You can change the scan interval of Mailbox objects under Configure objects (daily, weekly, bi-weekly, monthly, never or initial (collected once)). The interval is a target, not a guarantee: a scan can run later than planned.

Which module includes the Exchange connector?

The Exchange connector is part of the Digital Workplace module of Rencore Governance, which every Plan includes. The connector is generally available.

Related pages

Related pages