[Mailman-Developers] before next release: disable backscatterin default installation

[Stephen J. Turnbull]

Eino Tuominen writes:

 > You are missing the point. Of course you can inform of a delivery 
 > problem, but only when you really need to do it. Every organisation 
 > should know of every recipient within their authority. You should know 
 > the recipient if you accept a message for delivery from outside your domain.

Says who?  There is nothing in the standards that says so.  And if you
take that seriously, you have to disable .forward and procmail for
individual users, as well as refuse to allow open subscription mailing
lists and the like.  This may make sense in the U.S. Army and in
corporations with a military authority structure, but it does not in
most universities, research, or open communities.

That is *not* the way Internet mail is designed to work.  Mail, like
every other application on the Internet, is intended to be
decentralized.  It is designed to allow load-sharing by use of
intermediate and/or secondary MXes to handle primary crashes or
overloads.