On Mar 22, 12:38 am, Geoff Schultz wrote:
... Just remember that you need at least a general license (which requires
code)to utilize AirMail.

Just to be pedantic (and because I've been corrected on this), you can
use Airmail (the software) w/o even having a radio (it can use an
internet connection). If you use it with an HF radio you will need
access to the bands. For Sailmail (a service provider) that means a
ships station license and individual license for those bands valid in
the waters you are traveling. For Winlink (a collective of volunteers
who provide service) that means a general or extra ham ticket.

-- Tom.