When spam bots attack

I’ve been fixing up a few mail servers to be more discriminating over their connections. And I’ve noted that I didn’t have any automated tooling to block the spammers. I have lots of tooling to filter and control things.
So I wrote a quick log -> ban list generator. Not perfect, but it seems to work nicely.
Like I don’t have enough to do this week. /sigh
Meetings tomorrow starting at 8am.