I wrote earlier mentioning that my server was NOT responding to email, but was responding to the Web interface. Thanks for all the good suggestions I got. They have helped me to discover that the problem is that the server is not RECEIVING mail. I am running Listserv 1.8d, on an NT v4.0 server. I checked the "services", and both "Listserv," and "Listserv SMPT Listener" are started. After stopping and restarting these services again, I checked the last entries in the *.log files: smtp-19990622.log 22 Jun 1999 12:18:47 LISTSERV SMTP listener, version 1.0d 22 Jun 1999 12:18:47 Copyright L-Soft international, 1994-99 22 Jun 1999 12:18:47 Initialization complete. smtp#1-19990622.log 22 Jun 1999 11:30:52 -> RSET 22 Jun 1999 11:30:52 500 Service closing transmission channel I don't understand these logs too well. Do either of the above indicate a problem? Is there another parameter on the NT server that I should check? Thanks, --Mike