These people (adtech.de) call themselves (excuse any bad translation, all my fault). an "E-Mail solutions" and "on-line marketing" firm. It would seem that just like the nate. com case, the redirector is quite intentional and it would not be unlikely that the "abusers" are paying customers, hence no response from the company. Never, ever trust an ESP until they have proven themselves clean - like some other professions, I simply assume they are guilty of "bad" behavior - anyone ever know of a "well-behaved" firm doing telemarketing - I'd bet there are 100 boiler room operationss for every "legitimate" telemarketing firm (I worked a few days at one while in college).
Just look at their web pages and how they market themselves. Paul Shupak [EMAIL PROTECTED]