how to generate automatic mail in jira to reporter, when status is changed

[Dinesh]

once we set the ticket to 'WAITING FOR REPORTER' we need 3 emails send out, each one 72 hours after previous, to the reporter. If reporter does not update the ticket within 9 days, it will get closed.

[Vijay Sv · Accepted solution]

If your using script runner, use built-in scripts called "Escalation Service". Where you can add new service to send automated emails based on the JQL filter and also you can set the intervals(corn job).

[Kedar Pepakayala]

only we can close the tickets after some interval using this escalation service how we can remind the mail to particular person for every 72 hours 

[Vijay Sv]

Did you try using issue subscription option under saved filters?

[Dinesh]

No