Repos with similar databases:

• https://github.com/FGRibreau/mailchecker
• https://github.com/MattKetmo/EmailChecker/blob/master/res/throwaway_domains.txt
• https://github.com/andreis/disposable/blob/master/domains.txt
• https://github.com/ivolo/disposable-email-domains/blob/master/index.json