Before changing the headers, you need to wait a few days and send no campaign so the system has enough time to process any late bounce report coming in. When you see you don't get new reports, you can safely change the header prefix.Will that fix itself?
Can't Wait Before Sending.. I Have to keep my sending... What happens if I keep sending?Before changing the headers, you need to wait a few days and send no campaign so the system has enough time to process any late bounce report coming in. When you see you don't get new reports, you can safely change the header prefix.
You won't process bounces that come in for the older campaigns, which is something that you shouldn't do.What happens if I keep sending