I could add that now. Even though, I'll submit a new pull request where the `to`, `cc` and `bcc` will be an array instead of a string. So that `full_email` function is meant to be used on all those cases.

Since this is a incompatible change a new major version would be released, so it's up to you on how we'll do it for this version. I'll happily do it the way you consider is best. Let me know.