Trying to subscribe to lists given at https://lists.gnupg.org/mailman/listinfo/ does not send mail to subscribed addresses. In fact: nothing happens.

I have tried to subscribe to lists:

• Gnupg-announce
• Gnupg-de
• Gnupg-devel
• Gnupg-users

The web-interface tells about sending a mail you'll have to click on a link inside, but this mail never arives. Are there any problems with the mailer?

Mail send to:

• gnupg-announce-request@gnupg.org
• gnupg-de-request@gnupg.org
• gnupg-devel-request@gnupg.org
• gnupg-users-request@gnupg.org

holding only "subscribe" or "help" within subject and/or body is accepted, but never acted upon.