Commenting?

Hello,

I do have very regular and non registered users who are commenting a few articles. Most often, I realize that there comments are hanging in the non desirable list such as Akismet and others in the Admin area. For sure, I do get emails advising me of these comments. If these visitors stay unregistered, how can I have their comments approved automatically without being compromise with non desirable comments?

Thanks for your comments.

WorrypasCanada.