I need help with soa.granitecanyon.com free DNS

[Misha]

Hello,
I use free services - http://soa.granitecanyon.com (free DNS) and
www.capibara.com (free domain mapper)
and already have my own domain http://misha.co.yu
but I dont know how can I have email adress - something like
webmaster at misha.co.yu
what I have to write in form at http://soa.granitecanyon.com/ ?
Can anybody help me?
Thanks
Misha
http://misha.co.yu