Office 365: Adding an Alternate E-Mail Address or Alias

How to add alternate e-mail addresses/aliases so mail from multiple accounts can flow into a single account.

[@shootermcgavin4999]

Thank you!

[@bhaskey7]

Thanks, very useful.

[@alonsofisher8910]

You all probably dont give a damn but does anyone know a tool to log back into an Instagram account..?
I was dumb forgot my account password. I would appreciate any assistance you can offer me!