K2 email event failed due to invalid recepient.
Remove the user from our application. and retried the instance still I am getting same error with user.
Checked in database and current actioner name is getting as the user who is invalid.
Any solution for this?
The answer will depend on how the application is built.
How are you supplying the email value in the event? If it is not dynamic, then retrying will just send the same invalid value. If it is dynamic using a SmartObject, check if the value returned is a valid email address. If you are using a variable and it contains an invalid email address, you will probably have to restart the workflow at the step where the variable is populated (if that does not disrupt the logic).