Filtering and blocking (was Re: Islam is the spammiest subject line on python-list)

[Chris Angelico]

On Sat, Dec 14, 2013 at 3:40 AM, Tim Golden <mail at timgolden.me.uk> wrote:
> However, we've recently implemented filtering via the gateway, and I've
> just added bv4 to the list of banned addresses. (I'm not 100% sure I've
> got it right, so let's see if they make it in again).

What happens if someone else trips the filter (collateral damage)? Are
they informed that they're blocked, or does the post get black-holed?

ChrisA