[Mailman-Users] how-to make announce-like mail list: several write, all other read only

[Brad Knowles]

At 2:32 PM +0600 2004-06-10, Dmitry V. Sukhodoev wrote:

>  i have successfully installed Mailman 2.1.5 and this works funny. now i
>  need make mailing list with news/announces, where will can post only
>  selected people and all other only read this list.
>  i have found only one possible way to do this - to make all users
>  moderated, and process all their messages by moderator, before it posted
>  to lists.

	That's basically the method recommended by 
<http://www.python.org/cgi-bin/faqw-mm.py?req=show&file=faq03.011.htp>.

>  but i want to selected members can write to list without any
>  confirmations and of course need to be secure, cause "From:" address
>  is light to lie.
>  what is right way to do this?

	To solve the whitelist issue, just put the sender addresses you 
want to allow through on the "List of non-member addresses whose 
postings should be  automatically accepted." (a.k.a., 
accept_these_nonmembers).  You will find this field under "Sender 
Filters..." section under the "Privacy Options..." category.

	However, Mailman doesn't provide any security beyond checking the 
"From:" headers and envelope sender.  If you want to add 
cryptographic authentication to messages, that would take additional 
code.  If you can create such code, I'm sure that Barry Warwsaw would 
be more than happy to accept any contributions you should be willing 
to make.

-- 
Brad Knowles, <brad.knowles at skynet.be>

"They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety."
     -Benjamin Franklin, Historical Review of Pennsylvania.

   SAGE member since 1995.  See <http://www.sage.org/> for more info.