Winlink Global Radio Email®️…
…is a network of amateur radio and authorized government stations that provide worldwide radio email using radio pathways where the internet is not present. The system is built, operated and administered entirely by licensed “Ham” volunteers. It supports email with attachments, position reporting, weather and information bulletins, and is well-known for its role in interoperable emergency and disaster relief communications. It is capable of operating completely without the internet–automatically–using smart-network radio relays. Licensed Winlink operators/stations use both amateur radio and government radio frequencies worldwide.
Any amatuer gets use of Winlink, either via radio or internet. Check out this valuable tool at www.winlink.org.
I can un a Gateway/Digipeater at W9CHA-10 on 145.030 MHz. It is located in the Silver Springs Shores area. It has a good range, I can connect directly to the EOC Winlink with it. Below is a current map of Gateways in Marion County.

I do run RMS Express on a Yaesu 6000 with a Signalink sound card as needed.
There is more Winlink information on the MERT website at www.kg4nxo.com.