I have a list that is linked to a rather fuzzy conferencing system ("portacom") and I am having some problems with it. Listserv send the messages it has received to the conference in portacom, which sends the message back to the list. Listserv recognized the beginning of the loop, and refuses to to distribute the message further, very wisely. What I don't like is that listserv sends an annoying error-message to the innocent originator of the message. Is there any way to get rid of that. The listserv-documents that I have do not say anything about "LOOPCHECK" -header. I found that most lists have this set to "notocount", so I tried that also. No effect. What other possibilities are there besides NOTOCOUNT (btw, is there up-to date documentation somewhere availlable on GOPHER). I have errors-to:owners, reply-to=list, respect . The conference-alias subscriber is set to FULLHDR (there used to be loops without that setting). -Timo Harmo ([log in to unmask], HARMO@FINUH) P.S To be able to put in effect the good advice I hope to get from this list, I need one more advice: can I somehow add new owners or update the list header via mail? The conferencing system locked up when it received it's welcome-message from listserv, apparently (so says the sys adm) because in the TO-line there vere several different variations of my e-mail address, so I deleted my internet-address from the owner-list. It turned out that the files I send out are addressed internet-style (vax/vms SEND/FILE/NET), not bitnet, so listserv does not regognize me as the owner when sending files, only via mail or one-liners (SEND).