Comment 1 for bug 266025

OK, I have learned more about this. The behavior comes
about when generating the "Overvew" link as I mentioned
when I first logged the bug report. The hypertest link is made
by calling Mailman/Utils/ScriptURL(), which calls
Mailman/Utils.py/get_domain(), which looks for an OS
environment variable SERVER_PORT. The routine is probably
relying on Apache to set SERVER_PORT as an enviornment
variable in the cgi-bin execution process and it s not
happening. Wouldn't it be better to just rely on
DEFAULT_URL_HOST in Defaults.py ?