[beagle3]

My qmail setup in 2000, on a humble beige box, was occasionally under a “thousands of bad addresses” attack, but I only found out about it a few days later while reviewing the logs. There surely was a threshold where it would be down on its knees - but “thousands” and even “tens of thousands” wasn’t it. The exchange server it replaced, though, would crash and burn very often, for a variety of reasons.