Mark Martinec writes: > > 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)?
Embarrassingly, BATV breaks the ASF's ezmlm setup, which relies on the MAIL FROM address to determine sender identity and list membership. I think that's a bug in the ASF code. Apparently it's otherwise quite useful, but you will need to maintain a "whitelist" of BATV-excluded recipients... --j.