![]() ![]() The cmdlet displays search results in the Exchange Management Shell window. Synchronously search a single mailbox: You can use the Search-MailboxAuditLog cmdlet to synchronously search mailbox audit log entries for a single mailbox. ![]() You can use the following methods to search mailbox audit log entries: It doesn't work for NTLM or Kerberos logins to the mailbox. ![]() One log entry is generated for individual folder access within a time span of 24 hours.ģ Auditing for owner logins to a mailbox works only for POP3, IMAP4, or OAuth logins. Note that message or folder creation isn't audited.Īn item is deleted permanently from the Recoverable Items folder.Īn item is accessed in the reading pane or opened.Īn item is moved to the Deleted Items folder.Ī message is sent using Send As permissions.Ī message is sent using Send on Behalf permissions.Īn item is deleted from the Deleted Items folder.ġ Audited by default if auditing is enabled for a mailbox.Ģ Entries for folder bind actions performed by delegates are consolidated. ActionĪn item is created in the Calendar, Contacts, Notes, or Tasks folder in the mailbox for example, a new meeting request is created. Existing log entries aren't purged until the age limit for audit log entries is reached. If you no longer require certain types of mailbox actions to be audited, you should modify the mailbox's audit logging configuration to disable those actions. Note that an administrator who has been assigned the Full Access permission to a user's mailbox is considered a delegate user. The following table lists the actions logged by mailbox audit logging, including the logon types for which the action can be logged. Mailbox actions logged by mailbox audit logging To log actions taken by the mailbox owner, you must specify which owner actions should be audited. When you enable mailbox audit logging for a mailbox, access to the mailbox and certain administrator and delegate actions are logged by default. For details, see Enable or disable mailbox audit logging for a mailbox. Use the Set-Mailbox cmdlet to enable or disable mailbox audit logging. Mailbox audit logging is enabled per mailbox. You can also export audit log entries before the retention period is reached. To retain audit log entries longer, you have to increase the retention period by changing the value for the AuditLogAgeLimit parameter. If a mailbox is on In-Place Hold or Litigation Hold, audit log entries are only retained until the audit log retention period for the mailbox is reached. You can modify this retention period by using the AuditLogAgeLimit parameter with the Set-Mailbox cmdlet. If you move a mailbox to another Mailbox server, the mailbox audit logs for that mailbox are also moved because they're located in the mailbox.īy default, mailbox audit log entries are retained in the mailbox for 90 days and then deleted. This ensures that all audit log entries are available from a single location, regardless of which client access method was used to access the mailbox or which server or computer an administrator uses to access the mailbox audit log. Log entries are stored in the Recoverable Items folder in the audited mailbox, in the Audits subfolder. Mailbox audit logs are generated for each mailbox that has mailbox audit logging enabled. For items that are moved, the entry includes the name of the destination folder. Audit log entries also include important information such as the client IP address, host name, and process or client used to access the mailbox. When you enable audit logging for a mailbox, you can specify which user actions (for example, accessing, moving, or deleting a message) will be logged for a logon type (administrator, delegate user, or owner). These users are referred to as delegate users.īy using mailbox audit logging, you can log mailbox access by mailbox owners, delegates (including administrators with full access permissions to mailboxes), and administrators. It's especially important to track access to mailboxes by users other than the mailbox owner. Because mailboxes can contain sensitive, high business impact (HBI) information and personally identifiable information (PII), it's important that you track who logs on to the mailboxes in your organization and what actions are taken. ![]()
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