We do have an Exchange 2010 SP3 organization where most of users use outlook 2010 on cached mode. There are also some clients using outlook 2013.
Now, we are in the process of introducing new outlook clients [profile and new version of 2013] and I would like to know what are the pros and cons of implementing a new GPO to setup cached mode for new and existing Outlook profiles (outlook 2013) [this is for safe senders list]
According to link below, we should add a couple of keys to complete the GPO
Add registry subkey for safe senders list for Outlook 2010 & 2013
2 CAS&HUB VMs one for each datacenter, running Exchange 2010 SP3. OS Windows 2008 R2 latest updates.
2 MBX VMs on a DAG, one for each datacenter with same specs above