Question about Outlook Express

I'm accidentally enter unrecoverable account for my custom domain admin "kompek-feui.com"

Is there any other way that the admin move to another account?

My first try mail: *** Email address is removed for privacy ***

Accidentally change it to: *** Email address is removed for privacy *** (which I can't access anymore, i forget this account ever exist)

Need to change it to: *** Email address is removed for privacy *** (this Windows Account that I use recently)

I need your help asap,

Thanks