Currently we have a public folder with an email address that external users are able to email, after which they receive an automated reply. A user at example.com has sent through an email and the automated reply is bouncing from the firstname.lastname@example.org
They are coming through at approx 1 every 15 seconds, the buildup at one point was close to 4000.
I have been told that after a few days this would resolve itself, but i would like to know if there is a better solution?
Only thing I can think of is to set some kind of server side rule for trashing emails coming in i.e. maybe if 1 message arrives more than a certain amount of times set it to be deleted.
Info I found not sure if this will be helpful to your situation though.