Attributes for Exchange 5.5 Mailboxes : Garbage-Coll-Period
This is a value of the Deleted Item Retention Time for the mailbox (in seconds).
|Heuristic||12 => Replicated between sites, Operational Attribute|
Admin access only
|Ex55 Database name||Garbage-Coll-Period|
In the time period of the deleted item retention time you can salvage a deleted element of the mailbox in outlook out of the so-called 'dumpster'. Normally, the general default deleted item retention time of the according database is used for the mailboxes, but if the attribute parameter DXA-Flags is set to 3 or 5, then a special retention time is effective for this mailbox which can be configured with this attribute.
Garbage-Coll-Period is an operational attribute which is not automatically retrieved by a GetObject() or an GetInfo() call. You can load such attributes into the object property cache by explicitly calling GetInfoEx(). Read more about this technique in the topic 'Reading object attributes' here in the SelfADSI tutorial.