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Ok I have done this I however I am still getting the cert error?<br />
<br />
but only for 1 client<br />
<br />
the others are ok
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it is saying the the name<br />
<br />
autodiscover.domain.com is not on the certificate,<br />
<br />
I have created an SRV Record pointing to the correct autodiscover<br />
<br />
and have also created the correct URL Rewrite in the article that you posted
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Can you test it from this site also<br />
<a href="https://testconnectivity.microsoft.com/" rel="ugc nofollow">https://testconnectivity.microsoft.com/</a>
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it passes the same as a domain that is working
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It looks like you have cert issue and this domain is not present in your cert.<br />
<br />
Pls review this KB.<br />
<br />
<a href="https://support.microsoft.com/en-us/kb/2772058" rel="ugc">https://support.microsoft.com/en-us/kb/2772058</a>
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ok here is the update.<br />
<br />
in there locale domain, I added an srv Record in DNS pointing to the Hosted server, internally they are able to Autodiscover to the External Hosted environment no problem.<br />
<br />
If I try to configure using autodiscover on there IPhone or android phone, I get a Cert Error, when I view the Cert it is the Cert where there Website is hosted (not with us) I am assuming that this is because port 443 is open on their website??
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<div class="content wysiwyg-content">
Hi All we host about 5 companies email, and have an issue that's needs addressing.<br />
<br />
Each company we host for has an SRV record in place for Auto discover settings, out of the 5 Companies only one of them can configure there mail using Auto discover, as far as I can see there is nothing different.<br />
<br />
I vaguely remember having to do something in IIS for one of the domains (the one that works) for auto discover but cannot remember what.<br />
<br />
have I missed anything in regards to Records on the others?
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Hi All we host about 5 companies email, and have an issue that's needs addressing.

Each company we host for has an SRV record in place for Auto discover settings, out of the 5 Companies only one of them can configure there mail using Auto discover, as far as I can see there is nothing different.

I vaguely remember having to do something in IIS for one of the domains (the one that works) for auto discover but cannot remember what.

have I missed anything in regards to Records on the others?

Exchange 2013 Autodiscover Shared Enviroment

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.