2.2.4.1.1.2.6.3.1 ExternalUrl
The ExternalUrl element contains a URL that the client can use to connect to an NSPI server via Messaging Application Programming Interface (MAPI) Extensions for HTTP when the client is located outside of the firewall.
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The ExternalUrl element contains a URL that the client can use to connect to an NSPI server via Messaging Application Programming Interface (MAPI) Extensions for HTTP when the client is located outside of the firewall.