Dears,
i have Exchange 2010 SP3 RU9 Setup composed of 2 CAS/HUB Servers, and 2 Mailbox Servers..
all Mailboxes hosted in Exchange 2010 still, i introduced Exchange 2013 CAS/MBX Servers and redirect the OWA/ Active Sync/ Outlook Anywhere to CAS 2013 , now everything is OK except Active Sync , users who are hosted in Exchange2010 Servers cannot connect to Active Sync, i tested to host one account in Exchange 2013 Mailbox and worked perfect..the issue only with Mailboxes in Exchange 2010 seems Proxying not working fine..
i tested using remote connectivity and get this error "couldn't find MS-Server-ActiveSync and MS-ASProtocolVersions"..any help is appreciated
thanks
Mufleh