There’s nothing at all wrong with your approach or your original URL. I just showed you the non-SES version to help you better understand what the actual “event” name was.
Your regex probably just needs to be: “^api:”
That will match any event inside the “api” module.
Also, your posts are coming through E-mail multiple times. Are you deleting and re-posting or something on the website?
Yes, even though you “delete” the E-mail, everyone on the list still receives it. If you need to amend what you previous said, you can just send an additional message with only the changed part. No need to re-send the entire message.
Let me know if the new regex is correctly matching your event names.