xn----8sbcnqckej2ag1bk3k.xn--p1ai =

Is xn----8sbcnqckej2ag1bk3k.xn--p1ai a
temporary email domain?

Yes, xn----8sbcnqckej2ag1bk3k.xn--p1ai is a temporary/disposable email domain and should be blocked. This domain is typically used for short-term email access and does not represent legitimate long-term user accounts. We strongly recommend blocking registration attempts using this domain to prevent spam accounts.