How does one go about causing Listserv (Windows NT version) to generate an automatic subscription probe? I have a list that is looping and I can't seem to figure out which subscriber is causing the problem. Thanks. C. David Young VM, VMS, Listserv Central Systems Support Voice: (817) 272-3666, Academic Computing Services Fax: (817) 794-5796 University of Texas at Arlington, USA Internet: [log in to unmask] http://www.uta.edu/acs/home/cdyoung