On Wed, Aug 01, 2001 at 07:56:01PM -0500, Amy Tanner wrote: > On Wed, Aug 01, 2001 at 07:45:30PM -0500, Marc Ohmann (mohmann at qwest.net) wrote: > > I would think this stat would be difficult to come by since a lot of > > smtp servers don't return a name or version in the smtp header for > > security reasons. > > Yah, I just imagined someone would have done a study. I've seen numbers like > 70% sendmail but don't know how accurate that is. A simple search pulled this up: http://www.ohse.de/uwe/surveys/smtpauto.html It has the results of some older automated surveys. I haven't found anything similar to Netcraft for SMTP. As Marc noted, it would be hard to get good results because so many people hide what they run. Nate