On Fri, 2004-09-24 at 17:46 +0200, David wrote:
> We have also being playing with some crude attempts to detect faked
> bounces analyzing the message body and realized that:
>
> a) most faked 'bounces' are not real bounces (null envelope sender)
> but virus/spam warnings with non null envelope senders.
>
> b) most email servers, including all major isps, reject at smtp time
> so the unique scenario where we receive real bounces is in the
> case of email forwarding or from poorly configured email servers
> that do not reject at smtp time.
>
> c) some other broken mta's/firewalls send bounces using postmaster,
> mailer-daemon, nobody and all sort of non-null envelope senders
>
> so BATV solves a very little portion of the problem generated by
> email forgery, it will be usable if all mailing list software where
> batv compliant (this is its main drawback).
Your theory differs from my practice. I was getting lots of fake bounces
before February; I get almost none now. I'm on many mailing lists,
precisely one of which has a problem with SES.
--
dwmw2
