>I think it won't be possible since RENEWAL doesn't use a cookie like many
>other commands that require confirmation (and are thus able to use a
>clickable URL).
Say there was a list called L-Nittany here, then:
http://lists.psu.edu/cgi-bin/wa?LCMD1=confirm+l-nittany
Of course you need a previous LISTSERV password and most likely a cookie
in your browser, but that is pretty much a one-time effort (though
cookies do expire).
Other servers may have different file structures where WA "lives"
Pete