Have a customer that has two locations - main office and a satellite office. They are connected via a site-to-site VPN (10x10). The users at the satellite office complain about the speed of email all the time (they send some decent sized attachments). Thought was to put in another Exchange 2013 server at the satellite office and put the users at that location on that server on a new mailbox store.
Is that the best way to do this? Do I need to do anything special for those users to have access to OWA and/or ActiveSync? I would prefer not to have a 3rd Exchange server in the mix.