[SOLVED]Email system virtual alias table (I think)

Hi guys, Me again :)

I am missing something simple I know but would someone be so kind as to explain this for me

I have a email I have always used on my Dai-Galean.org domain dai-galean@Dai-Galean.org

When I go to send it email I get

This is the mail system at host mist.fogboundworkshop.com.

I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can delete your own text from the attached returned message.

               The mail system

dai-galean@dai-galean.org: User unknown in virtual alias table

Would you be so kind as to tell me what I am missing. As I have a few domains to do this for.

As all ways thank you in advance.

Darren