When running
the Get-MailboxStatistics cmdlet, two
of the attributes returned are AssociatedItemCount
and ItemCount. But what exactly are
the differences between the two?!
As one would
expect, ItemCount is the total
number of e-mails, contacts, etc. items available and visible to the end-user
on the mailbox. Basically, everything the users sees.
On the other
hand, AssociatedItemCount are
special messages in the Associated Table
of a folder. They are most often rules and other special messages like the MRM
FAI message. Basically, things that are “associated” with a folder, usually
other file-like objects not visible to users such as IPM.Configuration.RssRule,
IPM.Configuration.AutoComplete, Outlook Rules Organizer or
IPM.Microsoft.MigrationStatus.
These are
not visible to the user, only through MFCMapi for example (right-click a folder
and select Open Associated Contents table).
Folder Associated Information (FAI) is
a collection of message objects that are stored in a folder object and are
typically hidden from view by e-mail applications. An FAI Message object is
used to store a variety of settings and auxiliary data, including forms, views,
calendar options, favorites and category lists.
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