> Yes, we have also seen it on many of our clients domains. Same here.
Does anyone have operational experience with a scheme of labeling envelope sender addresses to recognize legitimate bounces to own mail, such as the BATV scheme (Bounce Address Tag Validation): http://mipassoc.org/batv/ http://sourceforge.net/projects/batv-milter What does such a scheme break? Do any mailing list management sw use envelope sender address for membership verification (instead of using author address in a From header field, or maybe in Sender)? Mark
