I implemented a exchange 2013 server in our site. I want to implement a second server with both cas and mailbox for fail over. I already installed the second exchange server only with mailbox role, and I removed the default database from the second exchange server.
My question is,
Will it mess up prod server and effect mail flow if I also install the CAS role and setup the virtual directories on the secondary exchange server?
2nd Question: The config needs to mirror the first exchange server correct? (virtual databases, send,receive connectors, and storage setup correct?)