We have several lists from 5k-20k subscribers which we load weekly. Currently, a production job sends each list and header using a PUTALL command. The whole job of loading all the lists takes 6 hours on an RX6000 single procesor 590 running AIX. One of the lists takes an hour to load. While this is happening, I've been told, listserv doesn't do anything else. So effectively all list mail is backed up for 6 hours. I don't understand why a PUTALL takes so long. Is there anything I can do to speed it up? Is there another faster load method? I want to replace the list. I suppose I could save the old list and generate changes instead, but that will require rewriting the production job. John Andrews UIC [log in to unmask]