Migrating laptops today.
Contacted Microsoft to flush the sellersaa.com DNS Cache in order to force the autodiscover proxy into an immediate update rather than 7-10 days.
sellersaa.com Domain has been fully migrated and DNS is correctly pointing.
Test user account is able to login to email & O365 apps online and on the laptop successfully.
Test account is able to remove/add account and send email to/from a mobile phone and Laptop.
MS Teams calling….SUCCESSFUL
All S&A User accounts should no longer be able to login. This is expected.
O365 has been removed from the S&A Domain and added to GCC High
Waiting on Internet Propagation of the DNS pointer to GCC High. Can take up to 12 hours.