Thank you both for your help. Majordomo appears to have been a poor choice - both because it is not designed for use with qmail and the e-mail configuration changes have to be integrated with e-smith's templates.
I looked at both Mailman and Mojo Mail as options. I did an install of Mojo Mail - which went smoothly and worked fine thanks to the directions referenced above. However, Mojo Mail does not allow true list functionality unless you install an expansion script. Until you do, only the list admin can send messages - and then only using the Web interface.
Installing the expansion script seemed easy, and required setting up a .qmail alias file to pipe incoming e-mails to the script. However, no matter how much I played with the file settings e-mails sent to the script would not go through. Checking the sendmail style logs available through the e-smith panel indicated that the e-mails were being sent to the script, but were then deferred due to a "permission denied" error.
Not sure what the problem was and, frankly, it was a little beyond me.
In the end, I discovered that you can set up a mailing list using qmail as is. Just add a file called .qmail- in /var/qmail/alias/ and include the e-mail addresses you want to send to - one per line. E-mails sent to @ will forward to the entire list. I gave my username ownership of the file and set up a symbolic link from the .qmail- file to my user/home directory, and now I can edit the file directly from my Windows desktop.
This isn't perfect - but will serve my needs.
-Warren Agin