A very, very rudimentary implementation of a TUI email client that uses jmap-mua. It mostly exists for development purposes and to quickly test new features in jmap-mua. Code quality (especially in regards to the TUI) is currently pretty low.
mvn package
java -jar target/lttrs-cli-0.0.1.jar username@domain.tld password
Alternatively, if your provider doesn’t have a .well-know/jmap, you can specify the URL with
java -jar target/lttrs-cli-0.0.1.jar https://jmap.fastmail.com/.well-known/jmap username@fastmail.com password