为什么大多数电子邮件验证将某些东西作为有效的电子邮件地址传递？(Why most of the email validations pass something@something as a vali

为什么大多数电子邮件验证将某些东西作为有效的电子邮件地址传递？(Why most of the email validations pass something@something as a valid email address?)

根据我的理解，电子邮件地址的格式为address@domaim.tld 。 仍然大部分的电子邮件验证，包括默认的HTML 5和被动式表单验证都会通过something@abc作为有效的电子邮件。 有人可以提供解释吗？

As per my understanding email addresses are of the form address@domaim.tld. Still most of the email validations, including default html 5 and reactive form validations pass something@abc as a valid email. Can somebody provide an explanation on this?

最满意答案

简单的答案“abc”是一个有效的域名。 https://en.wikipedia.org/wiki/Email_address#Domain

Simple answer "abc" is a valid domain name. https://en.wikipedia.org/wiki/Email_address#Domain