I want to have access to a second email address when I open outlk

[becky123456789]

I want to access a second email address from my outlook. How do I add
another inbox for that email? both addresses have the same domain address
and we have a server

 

[C.R. [mx]]

If I undestand, yo need to open an aditional mailbox from Outlook, you need
to go to Tools-->Email Accounts or Accounts settings-->Change the Exchange
server accounts--> more settings-->Advanced and add the additional mailbox
alias.