Finally, after only three months of waiting for the installers and post office people to pass a key between them, the post box in the lobby is available for use.
You can mail letters safely through the letter slot.
Of course, if you get a letter incorrectly addressed to you, write the correct address or some note on it and pop it in the letter box for the post office to deal with properly.
Parcels will be left in the boxes as per there size.
If you get a parcel, you MUST return the key after retrieving your parcel by putting it in the mail slot so it can be used for the next person.