Why do I receive no mail from Savannah?
Almost certainly the mail was filtered as spam on your end. Check your spam filters.
Less likely, it could be that you (or your ISP) deploy a challenge-response-based anti-spam system, where the sender must acknowledge (verify) that their email is not spam. We can't deal with such CR-based systems, and, in general, they shouldn't be used. You will need to use an email account that is free of this 'anti-social' behavior in order to receive email from Savannah.
Less likely yet, it's always possible that the Savannah system is having problems contacting your mail server. If you're not receiving any mail at all, try sending a message to yourself from some external place.