Customer is receiving duplicate emails when a ticket is commented on

Question

One of our customers is receiving duplicate emails (sometimes up to 5 of the exact same email) when a public comment is added to a ticket. The body/subject of the emails they receive is identical, the trigger for this is one of the preset JSM customer notifications (see screenshot below)

The emails are also received at exactly the same time. Any idea why this could be happening? There aren't duplicates of the same customer in our

John Funk · Answer

You should go ahead and open a support ticket with Atlassian then.

https://support.atlassian.com/contact/#/

Nick Geddes · Answer

No, it's always a single comment.

I've had a look at the automations as well as the audit log and there's no trace of automations being erroneously triggered and emails going out

John Funk · Answer

Hi Nick - Welcome to the Atlassian Community!

I guess the question is - are there multiple comments been added to the ticket? Maybe through an Automation rule gone bad?