mmmsvit

https://github.com/casdoor/casdoor/discussions/2877 already create

list can be downloaded domains from: https://github.com/disposable-email-domains/disposable-email-domains/blob/master/disposable_email_blocklist.conf

and will be greate if support regexp, for example: *.ru to restrict bad country email domains

yes

for register

google - Temp Mail