I need professional help about the project below.
I have 2 edu domains.
already in use by staff only and email running on Exchange 2010. Staff member located under a dedicated OU and they all using Exchange email. Since we cannot accomodate high number of students in Exchange server we have decided to use another edu domain for them. Principal did not agree to migrate all email system to the Gmail or Office 365.
In Another OU Students already have their own AD account with no email
domain name has been purchased for students only and we wanna use it to give students email over Google Apps (free for education) OR
I know Google Apps Directory Sync
can syncronize with AD but I already have email system running so a kind of clash would occur I believe. Alternatively Office 365 can be considered too? Whichever more compatible with AD I would like to go with.
What is the right steps to achieve this project? What's your opinions?