A continuation to this thread http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/Q_26835943.html
I thought it was all sorted but now the there are 2 other clients who are unable to use Out of Office. These 2 clients are part of the same company/domain as the ones I mention in the first question, but in a different office.
Test Email Config works in Outlook 2007 and finds the autodiscover URL fine. They can also ping the cname autodisover.theirdomain.co
m (as it resolves to autodiscover.mydomain.com)
Cant figure out why now they cant access it?