How can I login to my email admin account (Postmaster email account) from my hosting control panel

Control Panel V5 > Hostings > Emails
You can login your postmaster email account automatically from your hosting control panel without filling the email address and password.
 
Please follow below steps to login it.
 
1. Login to your hosting control panel
 
2. Click on "EMAILS" >> "Emails".
 
3. Click on "..." under ACTIONS >> "Login Webmail Interface".