ADSelfService Plus now allows you to set a limit for the number of self-password resets and account unlocks users can perform in a given number of days. For  ​ example , you can limit the password resets to a maximum of 5 times a month for a user.  To do this,

• Go to Policy Configuration under the Configuration tab
• Click Advanced Settings of a self-service policy
• Go to Reset & Unlock tab
• Select Allow users to reset password/unlock account only  ‘x’  times in  ‘ x’ days  option
• Click  ​ OK

This setting along with Enforce Password History settings will ensure that users can’t exploit self-password reset to revert to their old pass word. 

This option is available in the latest build of ADSelfService Plus - 5306.  Existing customers can update to this build using the service pack.

https://www.manageengine.com/products/self-service-password/service-pack.html