iCloud Mail
Web2 utilities
One Apple account with iCloud+ (starts at $0.99/month) lets you create up to 500 email aliases through Hide My Email. These are real, persistent Apple-backed addresses that forward to your main inbox, and they actually look legit to any service checking your email domain. Compare that to buying packs of Rambler, Mail.ru or other bottom-tier mailboxes that get banned on sight by half the platforms out there. For less than a dollar a month you get 500 clean emails that don't scream "throwaway account" and don't die randomly. Honestly one of the most underrated tools for multi-accounting.