Hi, I would like to confirm the following steps for this upgrade
(install on CAS 1st, then Mailbox servers)
Is it necessary to run setup.exe/Prepare AD (from where Domain controller or mailbox server)? I have read that during the install it will automatically do that? please confirm
If you have custom OWA HTTP to HTTPS redirection configured in IIS, SP3 will reset these settings to default? is that correct ?
Do I install RU2 after on all 4 servers have been upgraded to SP3?
Anything to note or issues during the install