after trying and trying etc. I finally got it working!!! My ADSL modem is configured well and the main problem was that there where no default routes (which in V6 automatecally are made) set in V7. Mail works now also but with a long delay but that is because it's a beta.
I just did a portscan on grc.com and received 85 emails and later 95 emails is this normal???
Finally I can test it and give some reports....