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AuthPackage (POX)

The AuthPackage element specifies the authentication scheme that is used when authenticating against the Exchange server that has the Mailbox server role installed.

Last modified: August 13, 2014

Applies to: Exchange Online | Exchange Server 2007 | Exchange Server 2010 | Exchange Server 2013 | Office 365

AutoDiscover (POX)
  Response (POX)
    Account (POX)
      Protocol (POX)
        AuthPackage (POX)

<AuthPackage>basic or kerb or kerbntlm or ntlm or certificate or negotiate or nego2</AuthPackage>

The following sections describe attributes, child elements, and parent elements.

Attributes

None.

Child elements

None.

Parent elements

Element

Description

Protocol (POX)

Contains the specifications for connecting a client to the Client Access server.

The text value specifies the authentication scheme that is used when authenticating against the Mailbox server. The following are the possible values:

  • basic

  • kerb

  • kerbntlm

  • ntlm

  • certificate

  • negotiate

  • nego2

The AuthPackage element is only used when the Type (POX) element has a text value of EXCH or EXPR.

Version differences

Office 365, Exchange Online, and on-premises versions of Exchange starting with build 15.00.0995.014 return a value of "negotiate" only if the server is configured to use Negotiate authentication and the client includes a X-ClientCanHandle header that contains "Negotiate".

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