There's a required element that needs to be present in the recoveryMailBody value, in order for this functionality to work. Can you please make sure that your recoveryMailBody(please find attached a screenshot demonstrating the location of these settings) contains:
element is included, as it is the only mechanism for the body to include the recovered password. Please try this functionality and let me know if any problems persist, or this is not the exact functionality you want to achieve.
the Telerik team
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