> First, I presume that listserv itself is creating the XMRG command and > adding the VERSION=1??? > Any ideas on WHY this is failing? Use of the XMRG command requires that LSMTP be the outbound mailer. If you're using some other MTA and still want mail-merge functionality, you need to set the following in your site configuration file: EMBEDDED_MAIL_MERGE=1 (Note that this only works for 14.4 and later.) -- Liam Kelly Senior Consulting Analyst L-Soft international [log in to unmask]