When sending email from outside using Yahoo or Hotmail email account.
what is the route it takes to get to exchange 2010 mailbox.
Assuming exchange 2010 has Mailbox/Hub/CAS and Edge transport in the DMZ.
I want to know if it really goes through CAS or straight to the mailbox,because in some blogs they say public emails go through CAS some say they don't.
If I can get a link to a exchange 2010 book that goes in depth about exchange , that would be fine too.