Through wall mailbox

Does anyone know where we can get a mailbox that we can set into our wall so there is just the entry for the box on the outside with an internal access which is lockable. Have tried Leroy merlin AKI but all they have are the boxes that attach to a wall.

https://www.amazon.co.uk/Access-White-F ... ox+outdoor

Seen this on Amazon.co.uk but you need to pay extra delivery to Spain. You could just get an ordinary one and jigsaw a slot in the back and mount it on the inside of your wall with a hole chopped out of the wall to correspond to the jigsawed slot in the back of the mailbox. A bit messy but would work.

https://www.amazon.es/amig-12370-Amig-R ... bocacartas

https://www.amazon.es/Arregui-V4081-boc ... bocacartas

Or I have just seen these on Amazon.es. The top one does not show it but from questions asked it has a door on the other side to unlock and open.
The bottom one is two pieces to be fitted either side of the wall

Recogecartas is a box to collect post and bocacartas is literally a mouth to put the post in. You can look up both of these in Google or Ebay or Amazon.

I hope you find something suitable.

Try a ceramics shop the only one I know is on the N332 just before the cabo roig roundabout

Have seen some in the Ferreterra near Consum in Lo Marabou . .

Thank you everyone for your help the ferreterra mentioned had just what we needed