What if you are not using a valid email address? The forum does not have an email verification feature.
I had a different proposal to automate the same thing.
Click here. I have seen similar proposal from another user too. I guess theymos has his own idea, may be he does not want this to be automated or may be he is looking for a better solution.
I heard they are working on new forum software so hopefully we will be seeing a solution for this in the new software.