Try: modperl-unsubscr...@perl.apache.org Maybe it would help to have this bit of information, obvious as it should be, appended to each message, as is the case with many other mailing lists. (While even that may be ignored in certain cases, it certainly wouldn't be in all cases.)
At the moment, the unsubscribe address appears only in the mail headers. Apart from being listed on the website, of course. Michael Ludwig