We discussed this, at my urging, on 2005-08-18 to 2005-08-23 on LSTOWN-L. Basically, a dropspam.com agent in your subscribers computer "calls home" and dropspam sends the notification to you, as you say, without any inkling of who it is. In my case, a letter to dropspam.com via their "Contact Us" web form was promptly responded to. My letter was harshly worded by a lawyer, and eliminated the problem with my subscriber. Since I haven't heard of other dropspam problems, I wonder if they made their software smarter or white-listed my server? I don't know. Yes, I think your suggestion in the last line is the only (other) way to resolve this ... unless you can buy them out and then drop the service! ;-) cheers, wayne Listserv Manager wrote, in part, on 10/7/2005 4:16 PM: > I've sent this to support, but since I'm trying to deal with this quickly, > I'm also asking the user community. > > One of our lists with over 6k subscribers, has a potentially > difficult situation that I believe could affect any listserv list. One of > their members subscribed to drop_spam. When a post went to the list, the > outgoing post to the dropspam subscriber was intercepted by drop_spam. > Drop_spam then spoofed and email to the original sender, appearing to come > from lm_net, telling the sender to click on a link to approve the message. > Clicking on the link is to register with dropspam. This obviously causes > mass confusion, and gets dropspam a bunch of registrations under false > pretenses. The list has been notified NOT to click on the link, but a > number probably already have. We would like to identify folks who have > registered with dropspam so we can deal with this. My first thought is to > do an immediate active probe which would generate, but dropspam will > probably sanitize their email of any indication of the sender. Any > suggestions? A custom email to all subscribers with a unique > subject?