Just want to inform you that it is not possible to subscribe to the mailing list from some email providers, due to a proposed non valid MX-Record.
For example if I try to subscribe to any of your lists from the provider 'web.de' I get the following message: ------------------------ This message was created automatically by mail delivery software. A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address failed: "[email protected]": no valid MX hosts found ------------------------------
