I have exchange server 2013 with only external outlook anywhere clients connecting to. No internal. I have a public SRV record configured for autodiscover. This was working great for at least a month or so, but now when I try to do something like automatic replies it comes back saying the server is unavailable.
I have tested using the Microsoft remote connectivity analyser for Outlook Anywhere and the AutoDiscover. I've also done a manual autoconfiguration test in outlook and it discovers the srv record fine. Browsering to https://mail.mydomain.com/autodiscover/autodiscover.xml is fine as well.
This doesn't seem like a particular service that just stops working. Does anyone have an idea on what I can do?