Step 1
Go to https://portal.office.com/
Step 2
Enter your Global Administrator Email Address and click Next
Step 3
Enter your Password and click Sign in
Step 4
Click Yes to stay signed in
Important Note: If you are asked to either sign in with Work or School Account or Microsoft Account, Please select Work or School Account
Step 5
Click the waffle icon (Nine Dots) then click Admin (If admin isn't listed click All apps)
Step 6
Click Users
Step 7
Click Active Users
Step 8
Click the user you want to add the forwarding on
Step 9
Click Mail
Step 10
Click Manage email forwarding
Step 11
Tick "Forward all emails sent to this mailbox"
Step 12
Enter the forwarding email address and tick if you want to retain a copy of the forwarded email
Step 13
Click Save changes
Step 14
Forwarding is now added