This is wonderful I think. I tested it a while back when it was still in its infancy but it has come around very nicely and is now looking very polished indeed. It also has ios version and will not require your contacts to install it if they dont want to so adoption rate should be good atleast in theory. Comes with end to end encryption so really is limited by the email service providers limitations.... I am liking it a lot. Just that getting people to adopt it in reality might still be a challenge .... but where's the fun without challenge eh!!
@jcc Well it works with disroot.org so u can create an account there and then use that for messaging... the USP that your contacts with email can then be contacted via email will still be applicable... I love @Tutanota and am sure there is a good reason why it doesn't work with deltachat but that shouldn't stop you from using both of the lovely solutions....
It does work automatically using autocrypt
Autocrypt is a new and open specification for automatic end-to-end email encryption.
Your end-to-end setup is created automatically as needed and you can transfer it between devices with Autocrypt Setup Messages.