To create a folder in Outlook, select which area you would like the folder to be in, eg in the inbox or just the main mailbox. Right click and select New Folder then name it whatever you would like.
To create a rule to forward all mail to a certain email address to that folder.
File > Manage Rules & Alerts:
Select New Rule
This will open the Rules Wizard:
Select the option that best suits your needs:
Whichever option you select in the Step 1 box will have options in the Step 2 box, ensure you click on those options as well.
The first option people or public group will bring up the address list, you’ll need to double click the email address you want the rule to apply to:
The specified option will bring up the list of folders in your Outlook:
Click Next
The next several windows will have several options that can be selected. It’s best to read through them to ensure you get the rule you want.
The last window will give you the option of applying to the messages already in your “Inbox”, you just need to check the box Run this rule now on messages already in “Inbox”
Then click Finish and the rule will run.
The rule will then be in your list of current rules and any rules that are no longer applicable can be deleted by selecting the rule and then clicking the Delete button.