Debian maintainers are required to provide a valid email address in the maintainer field for package uploads. Some maintainers have adopted the policy of various arbitrary filtering rules of their own invention, under which they will not receive some proper email from perfectly legitimate senders communicating about their packages.
I believe such packages should be treated exactly as if the developer in question has simply put no email address at all in the package. Thomas -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]