SRV Record And Autodiscover

Hi

Have an issue where we have an Exchange 2013 Server only External users Connect to, It is a small hosting server so the domains have SRV Records pointing to a name on the Cert

If you try to setup Devices i.e. iPhone using auto discover it does not work it just takes you to the screen where you have to add more information like Server Name etc., if you do this it will work fine.

if I add and auto discover A Record to their domain and point it to the exchange server, then Auto discover will work but then they will get Cert Issues in Outlook.

so it seems that the Auto discover Part is not working with SRV Records???
pepps11976Asked:
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FOXActive Directory/Exchange EngineerCommented:
DLeaverCommented:
Add an external A record that points to the same mail gateway address, but for autodiscover.

A record - external-mail.domain.com - 1.1.1.1 (external IP)

A record - autodiscover.domain.com - 1.1.1.1 (external IP)

Use https://testconnectivity.microsoft.com/ to test

Alternatively you can add a CNAME which points autodiscover to the current mail A record.  The SRV should work in directing the service, the connectivity test will confirm any errors here.

Be aware that if autodiscover.domain.com is not included as a subject alternative name on your cert then your customers will still get cert errors....

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