How do I connect my account to Evernote

Click on 'Settings' then click on 'Apps' - you will see the option to link your UK Postbox account to Evernote.
Once selected you will be taken to an Evernote page, 'Sign in to authorize iPostalMail'. You can then continue by signing in and 'Authorize' which will link with your UK Postbox account. New scanned mail items will be uploaded into the linked Evernote account as notes in the root of your account.