Last modified: October 13, 2012
Applies to: Exchange Online | Exchange Server 2007 | Exchange Server 2010 | Exchange Server 2013 | Office 365
The LegacyDN element identifies a user's mailbox by legacy distinguished name.
The EmailAddress (NonEmptyStringType) element is an alternative element for an Autodiscover request. It is used when a mailbox exists on a computer that is running Microsoft Exchange Server 2007.