参考资料： ======== 1.如何验证 Email 地址：SMTP 协议入门教程 阮一峰 http://www.ruanyifeng.com/blog/2017/06/smtp-protocol.html?utm_source=tuicool&utm_medium=referral 2.【如何校验邮件地址的有效性】第三篇 ：原理二 木子耗2009 http://blog.csdn.net/u011628250/article/details/72909796 ============== Validate_email ============== Validate_email is a package for Python that check if an email is valid, properly formatted and really exists. INSTALLATION ============ First, you must do:: pip install validate_email Extra ------ For check the domain mx and verify email exits you must have the `pyDNS` package installed:: pip install pyDNS USAGE ===== Basic usage:: from validate_email import validate_email is_valid = validate_email('example@example.com') Checking domain has SMTP Server ------------------------------- Check if the host has SMTP Server:: from validate_email import validate_email is_valid = validate_email('example@example.com',check_mx=True) Verify email exists ------------------- Check if the host has SMTP Server and the email really exists:: from validate_email import validate_email is_valid = validate_email('example@example.com',verify=True) TODOs and BUGS ============== See: http://github.com/syrusakbary/validate_email/issues