Feat/test smtp (#2806)

* add test-smtp server subcommand

* return error is password is None

* fix return type

* borrow variables

* convert args to &str

* Tuple needs to have the same types apparently

* Clone instead

* fix formatting

* improve test email body

* Update core/startos/src/system.rs

Co-authored-by: kn0wmad <39687477+kn0wmad@users.noreply.github.com>

* add tls connection

* remove commented code

* use aidens mail-send fork

---------

Co-authored-by: kn0wmad <39687477+kn0wmad@users.noreply.github.com>

core/models/src/errors.rs

@@ -327,6 +327,11 @@ impl From<torut::onion::OnionAddressParseError> for Error {
         Error::new(e, ErrorKind::Tor)
     }
 }
+impl From<rustls::Error> for Error {
+    fn from(e: rustls::Error) -> Self {
+        Error::new(e, ErrorKind::OpenSsl)
+    }
+}
 impl From<patch_db::value::Error> for Error {
     fn from(value: patch_db::value::Error) -> Self {
         match value.kind {