spam decrease since friday

Hi nanog,

we're seeing that we're getting about 2/3 fewer spam since friday.

Even blacklist hits are declining.

Does anyone has an explanation?

Regards
Sebastian

One of your secondary MXs went down? I dont see any lower levels. But
some bots hit a backup MX first.

(a) This is probably better on the mailop list, subscribe via
mailop-request@mailop.org.

(b) No discernable trend at any of my listening posts over the past week.

---Rsk