Have installed Exchange 2010 on Server 2008R2 and migrated users mailboxes from SBS 2003 which is still co-existing on the network.
I have 2 issues:
1. Although owa works from the internet, iphones won't connect and application log shows Event id 1033 MSExchange Activesync "The setting ExternalProxy in the web.config file was not valid. The previous value was null and has been changed to ."
2. When opening Outlook on the Client machines, a security alert is seen. "The name on the security certificate is invalid or does not match the name of the site". The certificate is for xyz.externaldomain.com however the exchange server is ex2010.intdomain.local
Any help appreciated