Thanks, Jason, that gave me information to get the problem solved.
-- GoDaddy does indeed support PEAR mail but the setup is not all that straightforward.
-- I called their tech support line and together we found a better solution.
-- Instead of using the PEAR mail option inside SecurityAssist, if your site is hosted by GoDaddy, you can the "regular" mail option and you don't need authentication credentials.
-- GoDaddy has a dedicated server for just this purpose. It's at ...
Note: This only works if your web site is hosted at GoDaddy.
Hope this helps ...