电子邮箱地址验证器
验证邮箱语法、检查MX记录，并标记一次性域名。
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.
什么是电子邮箱地址验证器？
邮箱验证分为三个层面：语法（它看起来像个邮箱吗？）、DNS（该域名是否有用于接收邮件的MX记录？）以及信誉（它是否是一次性或用完即弃的服务？）。要真正核实可送达性需要发送一封测试邮件，但仅检查语法 + MX + 一次性域名，就能在不打扰收件人的情况下识别出90%的错误地址。
常见使用场景
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.