After 2 years I released another UK postcodes POI file.
You can find the file at the releases page in my "UK postcodes" repository: November 2019
For more info on usage and how to create it yourself: see the Readme
These postcodes are POIs. It means that you can't use the postcode address search from the address pane. The postcodes in that screen are real postcodes connected to addresses.
This postcodes POI file contains POIs with coordinates with the name of a postcode. Actually the same as searching for "Tower Bridge", "Eiffel tower" or likewise POIs, but in this case you search for postcodes like 'ct14 8eu' or 'EX34 7EX' (uppercase or lowercase, without quotes around it) in the white bar in the top of the search screen, and it will find the postcode(s).
This version is also "inspired" by jahomax and JonnyTech who delivered some patches to the original script(s).
Harry