HP Software Reference Information Storage System v1.6 User Guide (T3559-90810, November 2008)

An OWA installation may have a simple or a very complex network architecture. When logging in to an
ExchangeaccountthroughOWA,theaccountinformationmustbepassedthroughthevariouslevels
from the user to the Exchange server. For a simple net work architecture, the login appears once similar
to that of Outlook, b ut for a complex network, there may be multiple prompts for login information
within the same session.
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RISS Outlook Interface