Nations all over the world has worried about bombs getting into airplanes with great concerns. It's signifcant.
yes they can
Planes well to send like South to the West may be food of mail.
Ghost Terror recieves fan mail at: Ghost Terror 5318 west Drummond PL Chicago,Ill 60639 USA
Air Planes
Ghost Terror recieves fan mail at ghost terror 5318 west drummond Chicago,Ill 60639 USA
Since it is not a weapon, it is legal everywhere.(except planes :)
Communication by mail.
Mail Call - 2002 Trebuchet Troop Headcounts BAR Smart Bombs Modern Parachutes Boomerangs 2-5 was released on: USA: 26 January 2003
Mail planes allowed for faster and more consistent delivery of mail and packages between different regions of the country, improving communication and connectivity. This facilitated quicker dissemination of information and increased interactions between people from different areas, ultimately contributing to a sense of national unity and closeness.
Everything from Piper Cubs to B-29 Superfortresses saw service as military mail planes, although the US C-47 was perhaps the most common mail carrier.
Mail from the US to Dubai generally travels by air, so the actual trip would take about 15 hours nonstop, longer if the mail changes planes on the way. Handling in New York and Dubai would increase the time until the mail is availiable to the recipient.
Opening and receiving mail from people you do not know is dangerous because it could be any number of bad things. There has been bombs sent, drugs, weapons, even things like anthrax.