After 7 months of preparing and refactoring legacy code we are happy to present you the new TYPO3 Extension Repository.
We launched on 23th August and you might find some things that doesn't work yet. Maybe you have some good suggestions and feedback? Please tell us here (login with your typo3.org credentials): https://git-t3o.typo3.org/t3o/ter/issues.
Powermail is a well-known, editor-friendly, powerful and easy to use mailform extension with a lots of features (spam prevention, marketing information, optin, ajax...
Protect your mailform (default TYPO3 contact form) from spam by a CSS trick (honeypot). Demo available under http://www.sbtheke.de/demo/cssspamprotect/.