Difference between Outlook Anyware and Autodiscover in Exchange 2013

Greetings Experts,

Could you please clarify to me what's the difference between Outlook Anyware and Autodiscover?

Q1) When autodiscovery is required and when the Outlook Anyware?
Q2) Why both require external access?
Q3) When a mobile/remote device will try to access Autodiscover and when Outlook Anywhere?
mamelasAsked:
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Scott CSenior EngineerCommented:
Autodiscover for Exchange

https://msdn.microsoft.com/en-us/library/office/jj900169(v=exchg.150).aspx

The Exchange Autodiscover service provides an easy way for your client application to configure itself with minimal user input. Most users know their email address and password, and with those two pieces of information, you can retrieve all the other details you need to get up and running. For Exchange Web Services (EWS) clients, Autodiscover is typically used to find the EWS endpoint URL, but Autodiscover can also provide information to configure clients that use other protocols. Autodiscover works for client applications that are inside or outside firewalls and will work in resource forest and multiple forest scenarios.


Outlook Anywhere

https://technet.microsoft.com/en-us/library/bb123741(v=exchg.150).aspx

In Microsoft Exchange Server 2013, the Outlook Anywhere feature, formerly known as RPC over HTTP, lets clients who use Microsoft Outlook 2013, Outlook 2010, or Outlook 2007 connect to their Exchange servers from outside the corporate network or over the Internet using the RPC over HTTP Windows networking component. This topic describes the Outlook Anywhere feature and lists the benefits of using Outlook Anywhere.

In a nutshell, Autodiscover is used when setting up a connection to your Exchange server when creating a profile and connecting an device, Outlook Anywhere is after the connection is set up, actually connection to your Exchange server to send/receive emails and data.

They both require external addresses as you will most likely at some point need to connect to both services externally.

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mamelasAuthor Commented:
Thank you for your rapid solution!
Scott CSenior EngineerCommented:
Happy to have been able to help.
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