Two suggestions:
- Try putting a dot at the end of your MX value. It should be
mail.xxxxxx.ee. (a dot after ee). if this does not work, just put "mail" (without any dots) and see if that works.
- There is no point in having two MX referring to the same host. You might as well only use one value. Although have two records with same value should not result in an error - it's just redundant.
If the first suggestion (both variations) does not work, you need to contact the company that provides DNS service and ask them what is wrong.
