Hello, All!

We are starting migration from Exchange 2010 to Exchange 2013.

We've already installed 3 Exchange 2013 Servers and configured them also.

The External IP for ActiveSync is bounded to F5 that moves user's request towards ISA that is located in our DMZ and ISA moves the request to Exchange Servers.

One problem that I'm facing now and it's: Do I need to configure External URL for ActiveSync on Exchange 2013?

As far as I know, that External URL of ActiveSync is being used for Autodiscover process only.

And after that the only URL that is used it's Internal one.

Am I right? Where I can find accurate information about External and Internal URL's usage?

BR,

Pavel

• Edited by pavlenych 16 hours 58 minutes ago mis
• Moved by Jason Johnston [MSFT]Microsoft employee 6 hours 28 minutes ago Not a development question.

yes need to make a auto configuration for mobile devices

check this url -https://technet.microsoft.com/en-us/library/hh529912(v=exchg.150).aspx

General rule is, the client try to connect internal URL first, external URL second.

If you have internal and external clients, and they are using different namespace, you need internal URL and external URL.

For activesync if used internal then they have to be on your wi-fi else their internet data will use external url.