Email masks are masked, or private, email addresses that forward messages to your true email address. These masks allow you to share an address with third parties which will mask your true email address and forward messages to it.
所谓“马甲邮箱”，就是可以将邮件自动转发至真实邮箱的私人匿名邮箱。您可以放心地向第三方提供这些邮箱地址，掩藏真实邮箱地址。