I am still interested in doing something to protect subscribers to our lists from more problems from the Belfast mailer. I had thought that reporting the problem would be a good idea. I didn't realize there was anything I could do about it locally. I take it that if I set the Loopcheck parameter to something other than "Nobody" this will help. What other strings might I substitute constructively for Nobody in this instance, with what consequences? Indeed, in 50 words or less, what is the operation of Loopcheck? I hasten to add that this question is presented generally, and I would certainly welcome responses from anyone. Thanks, Tim Stephen RPI