Cargo Features

[dependencies]
dns-mail-discover = { version = "0.2.7", default-features = false, features = ["runtime-tokio", "runtime-async-std"] }
default = runtime-tokio

The runtime-tokio feature is set by default whenever dns-mail-discover is added without default-features = false somewhere in the dependency tree.

runtime-tokio default

Enables tokio, runtime-tokio of async-native-tls

runtime-async-std

Enables async-std and async-std-resolver ^0.22.0 and runtime-async-std of async-native-tls

async-native-tls:

Runtime

dns-mail-discover has 3 features without comments.