您需要使用真正适用于电子邮件地址的正则表达式。你目前的一个是完全破碎的，因为有很多有效的地址不能接受。

You need to use a regex that actually fits for an email address. Your current one is completely broken as there are tons of valid addresses it won't accept.

请参阅 http://www.regular-expressions.info/email.html ，以获得更详细的描述，以及为什么正则表达式毕竟不是一个好主意。

See http://www.regular-expressions.info/email.html for a more detailed description and arguments why a regex is not such a good idea after all.

无论如何，这是一个可能适合您的需求：

Anyway, here's one that probably fits for your needs:

[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?

这是关于这个正则表达式的regular-expressions.info：

Here's what regular-expressions.info says about this regex:

如果我们省略使用双引号和方括号的语法，我们将获得更为实际的RFC 2822实现。今天仍将匹配99.99％的电子邮件地址。

We get a more practical implementation of RFC 2822 if we omit the syntax using double quotes and square brackets. It will still match 99.99% of all email addresses in actual use today.