With 1.7f the only non-acrobatic way is to put the message in a 'listname
MAILFORM' file on LISTSERV's A-disk and not use the WELCOME message. But
I don't recommend that approach since the format of the MAILFORM files
has changed with 1.8a (they are now called MAILTPL), and there is a much
simpler solution with 1.8a: put the text in the WELCOME message, and
create a 'listname MAILTPL' file with the following contents:
>>> SIGNUP1
.qq
>>> ADD1
.qq
As a CREN member you can get 1.8a at no cost by filling in the paperwork
available from LISTSERV@SEARN as CREN_MNT.PS and SA9403-1.PS.
Eric