TABLE 1: Background Maintenance Tasks
Task	Mailbox Store	Public Store
Purges indexes	Yes	Yes
Performs tombstone maintenance	Yes	Yes
Purges Deleted Items cache	Yes	Yes
Purges outdated public folder content	No	Yes
Purges expired tombstones in public folders	No	Yes
Resolves public folder conflict aging	No	Yes
Updates server versions	No	Yes
Secures folders*	No	Yes
Purges deleted mailboxes	Yes	No
Checks for obsolete messages	Yes	Yes
Defragments Store	Yes	Yes