1- Domain A is up an running well…all email works IN / OUT
2- Domain B has been added in the Admin portal and Configuration Window
3- All systems have “Green Light” on system Check
4- Email from Domain B can send out but not receive.
5- I went to advance and added all possible advanced features - no luck
6- I can log into the web portal access and see the Second Domain user… all appears to to be working ok
What did I do wrong?