Most email verifiers only check syntax and DNS — they can't tell if a Gmail or iCloud address actually exists.
CheckMail1 uses browser automation to simulate real login attempts on Gmail, iCloud, Yahoo, Outlook, and 20+ providers.
• Browser-based verification for major providers
• SMTP check for business domains
• Bulk CSV upload
• API access
• Pay-as-you-go pricing
Perfect for email marketers and developers who need accurate lists.
