| AlternateMailbox | Represents an alternate mailbox. |
| AlternateMailboxCollection | Represents a user setting that is a collection of alternate mailboxes. |
| AutodiscoverError | Represents an error returned by the Autodiscover service. |
| AutodiscoverRemoteException | Represents an exception that is thrown when the Autodiscover service returns an error. |
| AutodiscoverResponse | Represents the base class for all responses returned by the Autodiscover service. |
| AutodiscoverResponseCollectionTResponse | Represents a collection of responses to a call to the Autodiscover service. |
| AutodiscoverResponseException | Represents an exception from an autodiscover error response. |
| AutodiscoverService | Represents a binding to the Exchange Autodiscover Service. |
| DocumentSharingLocation | Represents a sharing location. |
| DocumentSharingLocationCollection | Represents a user setting that is a collection of alternate mailboxes. |
| DomainSettingError | Represents an error from a GetDomainSettings request. |
| GetDomainSettingsResponse | Represents the response to a GetDomainSettings call for an individual domain. |
| GetDomainSettingsResponseCollection | Represents a collection of responses to GetDomainSettings |
| GetUserSettingsResponse | Represents the response to a GetUsersSettings call for an individual user. |
| GetUserSettingsResponseCollection | Represents a collection of responses to GetUserSettings |
| ProtocolConnection | Represents the email Protocol connection settings for pop/imap/smtp protocols. |
| ProtocolConnectionCollection | Represents a user setting that is a collection of protocol connection. |
| UserSettingError | Represents an error from a GetUserSettings request. |
| WebClientUrl | Represents the URL of the Exchange web client. |
| WebClientUrlCollection | Represents a user setting that is a collection of Exchange web client URLs. |
| AutodiscoverRedirectionUrlValidationCallback | Defines a delegate that is used by the AutodiscoverService to ask whether a redirectionUrl can be used. |
| AutodiscoverErrorCode | Defines the error codes that can be returned by the Autodiscover service. |
| DomainSettingName | Domain setting names. |
| UserSettingName | User settings that can be requested using GetUserSettings. |