Make a List of Sender’s Addresses

If you need to make a list of the addresses of people who've sent you emails, you have two ways: use an add-in that can save them as new contacts or create a custom view that shows only the email address, then use copy and paste to get the addresses into the destination document.

The first step you need to do is to install the custom config file that exposes the sender's email address. Adding Custom fields to Outlook has the cfg file you need and instructions.

Once installed, customize the view by removing the existing fields and adding the sender address field to the view. You may also want to keep the From field (display name), but for this example, you only need the email address.

Right click on the row of field names and choose Custom…
Click Fields.
Select all of the fields on the right by holding the Shift key down as you move down with the Arrow key.
Click Remove.
From the end of the Select available fields from list, select Forms…
Select the Sender Email Address form and click Add (or double click on it). Close the dialog.
Select the From email address field and click Add to move it to the right pane.
Click OK, close the custom view dialogs return to the Outlook window.
Select the messages in the list and press Ctrl+C to copy.

Paste it in the destination document. If pasting into Word, an email message or other document that support OLE, you'll need to use Paste Special and paste as text, otherwise you'll paste copies if the actual messages.

To use these addresses in a new message, paste them in the To, CC, or BCC field and delete the column name.

To reset the view and restore the original fields, right click on the row of field names and choose Custom, then Reset.