sudden low spam levels?

[smb at cs.columbia.edu (Steven Bellovin)]

On Jan 3, 2011, at 1:04 55PM, Ken Chase wrote:

> I have two independent mailservers, and two other customers that run their own
> servers, all largely unrelated infrastructures and target domains, suddenly
> experiencing low levels of spam.
> 
> Total emails/day dropping from some 175,000-250,000ish to 50-75,000ish (legit
> mail in the 2-5,000 per day, yes I have some high spam:legit customers...). 3
> days in a row now at least, at quick glance.
> 
> Did someone set up them the bomb?

See http://krebsonsecurity.com/2011/01/taking-stock-of-rustock/ for a discussion of recent spam level trends.

		--Steve Bellovin, http://www.cs.columbia.edu/~smb