On 15/05/2021 09:11, Brian Gaff (Sofa) wrote:
Transported by air??
Seems unlikely.

A lot of Royal Mail is sent by air within the UK. However, they usually
apply the air freight restrictions to all post, just in case it is flown
at some point en route. They may have special arrangements with these
suppliers for destinations they know will not involve air transport.


--
Colin Bignell