I have a subscriber that is not receiving anything, command responses or posts, and I suspect that his ISP is filtering on a null "From ". There are two commands that you can send to listserv, one will put a null "From " and the other a non-null value. Could someone please refresh my memory of which they are so I can test my hypothesis? -- Rich Greenberg Work: Rich.Greenberg atsign worldspan.com + 1 770 563 6656 N6LRT Marietta, GA, USA Play: richgr atsign panix.com + 1 770 321 6507 Eastern time zone. I speak for myself & my dogs only. VM'er since CP-67 Canines:Val(Chinook,CGC,TT), Red & Shasta(Husky,(RIP)) Owner:Chinook-L Atlanta Siberian Husky Rescue. www.panix.com/~richgr/ Asst Owner:Sibernet-L