onSuccess callback being called regardless of result

[KaduCmK]

Tried testing the library using mailtrap, everything works great but if if try to simulate an error (in my case, putting a wrong smtp username), the onSuccess callback is called, followed by the onFailure with the error code. I don't think that's right...

to reproduce just set up a basic handler, define both callbacks and send an email through mailtrap but with a wrong username

[nedimf]

Sadly, I haven't had time to check this out, but yeah I agree it is not wanted behaviour.