randomchangeabledomainnameallowed123456.mailosaur.net =

Is randomchangeabledomainnameallowed123456.mailosaur.net a
temporary email domain?

Yes, randomchangeabledomainnameallowed123456.mailosaur.net 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.