Why is yahoo mail mg.mail.yahoo.com when i log in

When you log in to Yahoo Mail, you may notice that the URL in your browser's address bar changes to mg.mail.yahoo.com instead of the traditional mail.yahoo.com. This is because Yahoo Mail uses a technique called "domain masking" or "URL rewriting" to redirect users to a different domain.

In this case, mg.mail.yahoo.com is a subdomain of Yahoo's mail service that is used to handle the login and authentication process. By redirecting users to this subdomain, Yahoo can:

  1. Improve security: By using a separate subdomain, Yahoo can isolate the login process from the rest of the mail service, making it more difficult for attackers to intercept sensitive information.
  2. Simplify maintenance: Having a separate subdomain for login makes it easier for Yahoo to update and maintain the login process without affecting the rest of the mail service.
  3. Optimize performance: By using a separate subdomain, Yahoo can optimize the login process for better performance and responsiveness.

When you enter your login credentials on mg.mail.yahoo.com, you are actually being redirected to the main mail.yahoo.com domain, where you can access your email account. The mg.mail.yahoo.com subdomain is simply a temporary redirect that allows Yahoo to handle the login process securely and efficiently.

So, don't worry if you see mg.mail.yahoo.com in your browser's address bar when you log in to Yahoo Mail – it's just a normal part of the login process!