eternaltwin_mailer is used at run time in 3 crates. It's used only as a dev dependency in 1 crate.

Depender (with downloads and own rev deps) eternaltwin_mailer version
1 eternaltwin_rest ^0.16.0
2 eternaltwin_system ^0.16.0
eternaltwin_cli ^0.16.0
3 eternaltwin_services dev ^0.16.0