Can´t connect from MAC OSX to Exchange 2010


a customer is using a sbs2010 and now tries to connect his new Mac book with it. After configuring the credentials it says that the server isn´t answering.

We used an url and the ip. The macbook is inside the network. Ping works fine to the server.
Exchange 2010 wasn´t patched a time (14.01.0438) and Mac  OSX is new (10.10.4 - Darwin 14.4.0). OWA and Outlook from PCs works fine with this Account.

With Outlook from the Macbook it doesn´t work too...

Any idea what to look at or for ?

Thanks, loosain
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loosainAuthor Commented:
Those two articles i already read and didn´t help.
Any idea how to get an error that is helping to find the source of the problem ? I even don´t know at the moment if Exchange or Mac is the problem
You could check the error logs on the Mac, by opening which is found at /Applications/Utilities.

Leave it open, then try to log into the Exchange account and see what error messages are generated.

Alternatively, in Mac Mail, pull down the Window Menu to Connection Doctor, Click on "Log Activity", then Show logs.

To see it live, click on Show Details and click Check Again.
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David AtkinTechnical DirectorCommented:

When you've defined the Server in Outlook I'm presuming that you've used the local name of the server?  

You'd then define the Outlook Anywhere settings to get it to work remotely.
loosainAuthor Commented:
The user is on vacation with the macbook at the moment. We have taken this chance to update the exchange server to the newest Patch level. After vacation we are going to give it a try again. May be patchlevel was the problem...
Raymond PengSystems EngineerCommented:
Did you make any changes to exchange such as upgrading certs or cipher suites? I know outlook 2011 does not support the newest tls.
loosainAuthor Commented:
We have to wait to come back the customer with his Mac from holiday to test...
loosainAuthor Commented:
Found the error. There were two bindings in iis on port 443 and 10443. After deleting 10443 everything was fine

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loosainAuthor Commented:
See the last comment...
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