This plugin will send you an email every time a user logs in your website as an admin.
It displays the date the user logged in and their IP address.
Premium WordPress Login Notifications
The wait is over and the premium version of the plugin is here.
You can buy it from here
Features of the premium plugin are:
– Choose which roles to track (admin, author, contributor, etc)
– Stores user activity in a log and allows you to download it in CSV file
– Choose which IPs to ignore (good for development)
– Send emails at multiple e-mail accounts
– Lifetime free updates
– Add the username of the logged in user in the emails/logs