Using classic Outlook for Windows in business environments
EASY WORK AROUND
Hi, since the new outlook allows a primary, then auto organizes the others, the easy way to organize these is right click on one of the accounts, click on account settings, now you'll see all accounts. Click on the account you want first, then the first for that account is "account description". MS uses this to numero/alph the order. Put a 1 in front of the description of the account you want first, then a 2 in front of the next, etc... if you ever want to change this i.e. you added another account, just renumber them. After you do this, close settings and they move, just that easy.
Example:
1 Work Email Account
2 Other Email Account
3 Personal Account