Was heisst neuer e mail account

You're asking what a new email account is called in German!

In German, a new email account is commonly referred to as:

So, if you're setting up a new email account, you might hear someone say "Ich eröffne einen neuen E-Mail-Account" (I'm opening a new email account) or "Ich habe ein neues Postfach" (I have a new postbox).