Depends on how its set up. It’s really flexible. You can either set it up so it’s essentially isolated from all other email servers and only communicates with other deltachat chatmail(email) instances or it can be set up so it can connect with any (or only allowed) email servers. I think you can mix it somewhat too but you would need to double check that. The more isolated you have it setup I would imagine the more secure it is since if you had all your users on one server the encrypted emails would all stay on the one email server (the devs call this a chatmail server.). It’s even got custom (html/js applets) apps you can add to the group chats for games or polls or events and the like.

If it’s a newer default chatmail server than it only talks with other chatmail instances so it never gets received I believe. I know you caan’t do outgoing with chatmail and am like 80% sure incoming works the same way

Deltachat might work for the third candidate.

I definitely agree the corn subsidies are wasteful and over-funded. Also I’m sure your well meaning, but the myth that it takes 2 gallons to produce 1 gallon of ethanol seems like misleading oil propaganda. What is your source on that claim?

It takes two gallons of fossil fuels (counting fertilizer, transportation, and all other inputs) to make one gallon of ethanol

Even corn ethanol (one of the worst ways to make ethanol) still produces 30% more energy than the energy used to produce it. And with better production practices, it could be a lot better (and might be right now since the numbers are somewhat old) than that. That means less pollution.

Country Type Energy balance

United States Corn ethanol 1.3

Germany Biodiesel 2.5

Brazil Sugarcane ethanol 8

United States Cellulosic ethanol† 2–36

Source:https://en.wikipedia.org/wiki/Ethanol_fuel#Environment

Harvesting, transportation, fermentation are high co2 emitters

They don’t have to be. They are currently because equipment and vehicles mostly run on gasoline. If the farm equipment and fuel transporters were modified to run on the ethanol it would be co2 neutral or somewhat co2 negative as the co2 harvested by the plants would be stored for later release when burning the fuel or fermenting before burning.

Heating for fermentation and distilling could also be powered by co2 neutral biomass such as crop byproducts or well managed wood forests. Usually fertilizer is less necessary with organic and permaculture growing practices since the natural diversity of plants’ keeps the soil healthy and well nourished.

Land owners making ethanol precursors would want high yield crops.

Corn is actually one of the lower yield corps per acre when grown for ethanol. It averages around 350 gallons per acre. Crops such as sugar cane, sugar beets, sorghum, cassava, cattails and even natural prairie grasses all produce more than that per acre.

Corn is used so widely for ethanol in the US because of all the government subsidies keeping its price artificially low.

Well managed plant fuel is definitely better for the environment than fossil fuels. Brazil has been running most of its cars on ethanol grown from the byproducts of sugar cane production since they forced the carmakers there to adopt their engines to run it in response to the 1970s oil price shock.

So you mean it’s not ethanol that’s the problem, it’s the way it’s produced usually via monocrops like corn with massive subsidies. If you produced it more sustainably with a more natural permaculture like prairie grasses, wouldn’t it be better than the co2 emitting gasoline status quo?