Emailaddresses on the web ...

Hi! I got a question about the mailing list. Yesterday I accidentally posted a mail from the wrong account which came right back as the Mail address is not registered. I did not get it in my pear-list. BUT today by chance I checked the web and found the posting on several sites. Now 2 questions: -who wants the mail addresses on the web? (the "pear()daniu!de" is a joke if there are lots of mail addresses and I guess not only I am getting spam on my pear account) -how come my posting ends up on the website when it does not even find it's way to the list? -how is it possible to change behaviors of the mailing list? A poll? -I got the geeklog-mailing list where they just changed from "no mail-addresses at all" to "mail-addresses in the list but not on the web" which I think is a very good compromise ... Regards Daniel