Actually i have cloned my setup from one server to another. I'm gonna send the same newsletter for both servers and i wanted my existing email lists on the new server. My problems so far are:
1) I have copied the key at my new server configuration page. The cron however shows the old url
2) Still can't find where to link the licence
3) I tried to copy a newsletter (the code) from the old server to the new one. The newsletter have images from a local folder, copied image addresses from a site and their urls. Surprisingly, everything worked fine with the images except the urls which where all wrong.
Spam tests, spf validation etc, worked with no problems. after setting up the dns