I am confused on the role of a CAS server. Can someone explain it to me.
I've read everything and I still do not get it.
We have 2 HUBS, 4 MBX, 2 EDGE, 3 CAS
I need to know the email flow.
All protocols flow through the CAS.
If I send an email to myself, I know it goes goes thru the HUB then the mailbox server
Where does the CAS come into play.
OWA goes through a CAS then it hits your mailbox
If external mail come into our network, it goes through a smart host > Edge > HT > Mbx > outlook
Looking at that flow I do not see where the CAS comes in.
I have read everything.
Can someone explain baiscally 2 concepts.
How the email message flows internally & External with the above setup?