電子郵件地址驗證器
驗證郵件語法、檢查MX記錄，並標記一次性網域。
如何使用本工具
- 1
Type or paste a single email address (for example user@example.com) into the input field.
- 2
Click Validate to run the syntax, MX-record, and disposable-domain checks.
- 3
Read the verdict banner — likely deliverable or likely undeliverable — at the top of the results.
- 4
Review the per-check list and any returned MX records (priority and mail exchange host) below the verdict.
什麼是電子郵件地址驗證器？
郵件驗證分為三個層面：語法（它看起來像個信箱嗎？）、DNS（該網域是否有用於接收郵件的MX記錄？）以及信譽（它是否是一次性或用完即棄的服務？）。要真正核實可送達性需要傳送一封測試郵件，但僅檢查語法 + MX + 一次性網域，就能在不打擾收件人的情況下識別出90%的錯誤地址。
常見使用場景
Cleaning a marketing or newsletter list before a send so addresses with no MX records do not generate bounces.
Catching typos in domains (gmial.com, hotmial.com) that fail the MX lookup during signup form testing.
Blocking or flagging disposable-domain signups when you need durable, contactable accounts.
Spot-checking an address a prospect gave you before adding it to your CRM.
Sanity-checking a single address while debugging why a transactional email bounced.
Teaching teammates the difference between syntax validity and actual deliverability with a live example.