If you would like to get in contact with the developers of WordPress, you have a number of options.
We can't do email support, because it's not a good way to help out a lot of people. If you are having any trouble with WordPress, the best place to go is the support forums, where a number of people might be able to help you with your problem and others can learn from your troubles, or the Documentation Codex.
There are numerous ways you can help out the project, which we've tried our best to outline on the Codex in Contributing to WordPress.
For general inquiries, press requests, email Matt. (Note: Support requests to this email are ignored and deleted.)
If you think you've found a security problem in WordPress, please let us know at here and we'll take the appropiate steps to confirm and respond to the problem. (Note: Any non-security messages to this email are ignored and deleted.)