Fix RAND_MKTG_HEADER - spam assassin score



In this link:

There are simple instructions to fix this spam assassin penalty issue.

The article also states that this value is used to process bounces.

My question is: does anybody know "what" bounce processing mechanism uses this value? Is it just standard bounce processing through a bounce email address (which I don't use) that make use of this value to process bounces? Or is it also API calls from SES, etc?

Just curious if anyone has had an experience with this. @twisted1919 might have a quick and easy answer here...

Thank you!