Re: Research question: How many legitimate mail sources are out there?

"Alan DeKok" <[email protected]> Sat, 13 Aug 2005 10:40:01 -0400

Newsgroups	gmane.ietf.mxcomp
Message-ID	<[email protected]>

Matthew Elvey <[email protected]> wrote:
> Would someone out there please take a stab at answering this question?  
> Or has it been answered already?

  Yes.  http://www.striker.ottawa.on.ca/~aland/spam/

  The data covers a significant portion of the Internet.

> I'm guessing that there are under a million such mail sources.  There 
> are around .1 billion TLD Names*.

  Close.  As of a year ago, about 300k IP's.

  Alan DeKok.