/**
 * 判断邮箱是否正确，可以自定义邮箱后缀
 * @param email {string} 邮箱
 * @param domains {array[string]} 域名 ["163.com"]
 * @returns {boolean} boolean
 * 默认支持的邮箱：[
  "qq.com",
  "163.com",
  "126.com",
  "vip.126.com",
  "yeah.net",
  "vip.163.com",
  "188.com",
  "sohu.com",
  "sina.cn",
  "sina.com",
  "gmail.com",
  "hotmail.com",
  "outlook.com"
]
 */
export default function isEmail(email: string, domains?: string[]): boolean;