object class synchronization, 357
object hierarchy, 52, 356
Object Identifier (OID), 465
objects, 74, 629
accessing a forestwide listing of, 83
centralized management, 86
distinguished name (DN) for each, 85
in a new routing group, 275
reducing the number requiring direct administration, 79
relative distinguished names of, 85
replicating to Windows Server 2003, 360
in scope and details panes of MMC, 165
SID history maintained by, 77
ODBC logging, 438
offensive e-mail. See unwanted e-mail, legal exposure to
Office Custom Installation Wizard, 388, 389
Office profile settings, 388
OfficeVision, 345
offline access, enabling public folders for, 394
Offline Address Book folder, replicating, 343
offline address list, specifying a default, 273
offline backups, 602, 606, 608
offline certificate templates, 544
offline folders
not accessible via OWA, 406
without Cached Exchange Mode, 393
synchronizing the contents of, 394
offline server
restoring a single mailbox to, 610
restoring Exchange databases to, 240
offline storage (OST) file, 392
offline use, not accommodated by OWA, 406
OID (Object Identifier), 465
OMA (Outlook Mobile Access), 17, 487, 493
clients, 415
configuring, 494
enabling unsupported devices in, 495
Exchange folder system access, 494
text-only interface, 494
user interface, 494
virtual directory used by, 493
virtual root, 411
On Slow Connections Download Only Headers connection setting, 393
on-demand content conversion, 23
one-way connection agreement, 355
online backups, restoring, 608
online certificate templates, 544
online databases in a storage group, 237
online maintenance, 273
on-the-fly generation of members for query-based distribution groups, 198
open message transfer system, 428
Open Shortest Path First (OSPF) protocol, 64
Open Systems Interconnection layer. See OSI layer
OpenView, 594
operating system, configuring to optimize hardware, 144
operations, 29, 30
Organization tab, 182
Organizational forms folder, 343
Organizational Unit Selection page, 322
organizational units (OUs), 77, 322
organizations
creating, 153
creating a container, 150
designing, 121–29
eliminating the need for multiple, 94
enemies of, 516
installing Exchange Server in existing, 156
naming, 122, 153
planning, 121–34
origin authentication, 563
oscillating connector in an UP link state, 70
OSI layer, 636
OSI software, 473
OSPF (Open Shortest Path First) protocol, 64
.OST extension, 615
OST (offline storage) file, 392
Other User’s Folder In Microsoft Outlook option, 401
Other User’s Folders option, 400
OUs (organizational units), 77, 322
Outbound Bridgehead Server (BHS) screen, 436
Outbound Connections tab, 529
outbound e-mail, 436
Outbound Mail Configuration page, 436
outbound queues, 295. See also queues
outbound recipients, filtering, 444
Outbound Security button, 290
Outbound Security tab, 529
Outbound SMTP Domain Restrictions page, 437
outbound SMTP queues, 297
Outlook 2001 for Mac, 382
Outlook 2002 clients, 95
Outlook 2003, 4, 16, 374–76
Advanced Find dialog box, 46
changing the connection settings for Cached Exchange Mode, 392
compared to Schedule+, 381
component selection process, 386
configuring for secure messaging, 564
creating public folders in, 213
customizing the installation of, 387–89
delegating mailbox access, 401
deploying, 385–403
editing certificate properties, 559
enabling multiple users, 397–403
encrypting messages end to end, 562
features provided by, 375
installing, 385–91
installing components to run from the local hard disk, 386
making components unavailable, 386
managing public folders, 215–20
message privacy provided by, 562
new features of, 374
securing messaging in, 561–65
setting components to install upon first usage, 386
S/MIME and, 563
standard installation, 385
steps prior to distributing to client systems, 391
supporting, 391–403
using command-line switches to customize the installation of, 387
using the client without being connected to the Exchange server, 391
viewing the current profile, 398
window showing the public folder hierarchy, 214
working off line with, 392
Outlook clients
accessing Active Directory, 94
accessing messages, 24
connecting to an Exchange 2003 server, 400
searches performed in, 45
selecting the Users Certificate for, 555
trust verification performed by, 564
Outlook Express, 377–79
Outlook Mobile Access. See OMA (Outlook Mobile Access)
Outlook profiles, 397, 400
Outlook Today page, 376
Outlook Web Access. See OWA (Outlook Web Access)
out-of-office messages, 197
output packet queue, 636
outside hosts, 104
overconsumption of a resource, 629
Override tab, 479
Overwrite Events As Needed option, 580
Overwrite Events Older Than X Days option, 580
overwrite protection in WebDAV, 39
OWA (Outlook Web Access), 379, 641
accessing Active Directory information, 103
compared to OMA, 494
configuring timeout settings, 407
connecting Macintosh users, 382
connecting UNIX users, 382
connections, 641
default interface, 419
deploying, 411–18
enabling in user account properties, 409
enhancements to, 16
FE servers, 413–15
features not available, 379
features of, 405–9
interface experiences for, 407
limitations of, 406
logon screen, 407
managing, 409–11
requests, 641
securing client traffic, 408
segmentation, 419–22
servers, 409–11
user features of, 418–22
vulnerabilities involving, 520
owa-schema.ldf file, 422
Owa.Schema.vbs script, 422
owner, 196
Owner role for public folders, 219