Exchange 2013:SSL Certificate is for mail.domain.com, but outlook 2013 always connects to servername.internaldomain.local -> Certification warning

Hi,

we have an external domain and we use mail.domain.com to connect the smartphones to the Exchange2013-Server.
In our Office the local PCs connects to the Exchange-server over servername.internaldomain.local . Because we have a certificate installed for "mail.domain.com" outlook throws a warning "name of server is not the same as for certificate".

How can i make the Autodiscover to tell outlook2013 that it has to connect to Exchange by using "mail.domain.com" ? In the dns-server we have already the entry for exchange.domain.com set to the internal ip of the exchange-server.

I think it isn´t very complicate, but i haven´t slept for along time, so i can see the solution. Please help !
loosainAsked:
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Will SzymkowskiSenior Solution ArchitectCommented:
You need to configure Split DNS on your internal DNS servers and then configure your InternalURL's to match your extenral URL's. Take a look at the HowTo i have done below...
http://www.wsit.ca/how-tos/exchange-server-2/configure-split-dns-and-exchange-2013-virtual-directories/

Will.

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loosainAuthor Commented:
That was exactly what i needed - thanks !
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