使用RegEx验证和过滤电子邮件地址？ [英] Validate and filter email address with RegEx?

问题描述

使用RegEx和Javascript电子邮件字段验证来禁止免费电子邮件服务电子邮件（例如Gmail，Yahoo，Hotmail）的最佳方法是什么？

What's the best way to disallow free email service emails (e.g. Gmail, Yahoo, Hotmail) using RegEx and Javascript email field validation?

^.*@(?!(aol\.com$|yahoo\.com$|hotmail\.com$))$

我在这里看到了通用的用Java验证电子邮件地址解决方案使用JavaScript验证电子邮件地址吗？，但无法弄清楚如何禁止Gmail，Yahoo和Hotmail。

I've seen the generic "Validate email address in Javascript" solution here Validate email address in JavaScript? but cant figure out how to make it disallow Gmail, Yahoo and Hotmail.

[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+(?:[A-Z]{2}|com|org|net|edu|gov|mil|biz|info|mobi|name|aero|asia|jobs|museum)\b

推荐答案

上千种可接受的方法之一-

One of thousands of acceptable ways to get there - not that yours isn't acceptable...

function isGoodEmail(email) {
    if(isValidEmail(email)) {
        if(/(aol|gmail|yahoo|hotmail)\.com$/.test(email)) {
           alert(' valid email, but not for this site.  No free service emails!');
           return false;
        }
        return true;
    }
    return false;
}

function isValidEmail(email) {
  // implement using any of the email regexp's available 
}

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