Thank you for your support,
It did actually work, bot the website and email is now working. So that problem is solved.
Two things does not work:
1. The user name has to ve the ACE domain name
2. The contact form on the website does not accept the adress.
So it is possible, but not recomended because of the 2 things which will not work.
Case closed
Best Regards
- Geir