I have a new client that has a single DC and a Single Mail server
the mail server is running exchange 2013 cu6 and I need to get it upto cu12
I know that there are some schema updates that need to happen prior to running the update.
I have searched for the correct syntax and I am unsure which are the correct steps to run.
please can someone post the commands to prepare the schema, AD and domain and in which order they should be run as this is a big update.
thanks in advance
Simon