On 11/17/05, Warren Togami <wtogami@xxxxxxxxxx> wrote: > Hmm, I forcefully unsubscribed everyone with a @uol.com.br address, but > I am still receiving those damned petsupermarket bounces immediately > upon sending a message to the list. > > uol.com.br has been a problem here for months. This is insane. > > Warren Togami > wtogami@xxxxxxxxxx > How big is the mailling list? Is it possible to send an individual email to each subscriber that has the destination email in the title? Then, when it bounces back you'll know who's the culpret. Obviously this would impact all subscribers, but anyone who posts to this list would be more than happy to get it. Perhaps the email could be a warning that people don't use email addresses associated with challenger/response systems. If this is too drastic, perhaps it could be implemented in the mailman reminders? A bit of work presumably, but worth the payoff?