I used [Rules][1] module to know when a user has logged in and notify the user about his/her login event.

Now I just want to check when the user has submitted a content of one specific type for the first time, so I just can understand when the user has submitted his/her first content of a speccific content type!

How can I modify my rule in Rules to implement this? 


  [1]: https://www.drupal.org/project/rules