Well, it looks like the spam levels this week have not only returned to their pre-McColo shutdown levels, but they’re beginning to surpass them.
Just before the McColo shutdown, my mail server was receiving roughly 75K emails per day during the week, somewhat less on the weekends. Afterwards, the level dropped to less than 20K per day, which is where it stayed through the end of the year. Since the beginning of the year the amount of mail hitting my mail server has been rising, hitting about 60K messages per day two weeks ago.
