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Email Validator

Check email syntax and flag role / disposable / free domains.

Valid syntax
4
1 invalid · 5 total
  • hello@example.com
  • admin@gmail.com
    role addressfree provider
  • bad..email@test
    syntax invalid
  • throw@mailinator.com
    disposable provider
  • name+tag@protonmail.com
    free providersubaddressing (+tag)

Syntax check only - cannot tell you if the address actually receives mail. RFC 5321/5322 allows weirder forms than this regex covers, but for almost every real-world email it's the right line. Disposable domain list is short and not exhaustive.

About

Paste a list of emails (one per line). The tool checks RFC-style syntax and flags role addresses (admin@, info@), disposable providers, free providers, and subaddressed forms (+tag).

How to use

  1. Paste emails (one per line).
  2. Read the validation flags.

FAQ

Does this verify the inbox exists?+

No. That requires SMTP probing or a paid validation service. This is a syntax check plus heuristic flags.