1. Set anonymous_list to Yes.
2. Set first_strip_reply_to to Yes.
3. In new_member_options I've selected Conceal The Member's Address.
4. For private_roster I've selected List Admin Only.
5. Set obscure_addresses to Yes.
What have I missed?
It really surprises me that the vast majority of lists (including this one!) blithely send out posters' email addresses to all subscribers. Of course, having an anonymous list means that posters have to sign their emails, or no one knows who sent them. :)
Douglas
Brad Knowles wrote:
At 5:47 PM +0000 2004-11-29, Gary Smith wrote:
In one of the previous posts (Allow members to send e-mail to another list)
it was mentioned that intelligent spammers could monitor the output of a
list and then spoof one of the subscribed addresses.
Indeed, this is a risk.
I dont know much about emails, but how is this possible that they can monitor the output?
They subscribe to the list. They see all the addresses come across that a regular user would see, then pick one that they want to spoof.
It is possible to stop it easily?
Nope. If all posters were required to use PGP-signed messages, and you had PGP integrated into Mailman so as to reject all messages which were not correctly PGP-signed, that might work. Of course, anyone who wanted to join the list and post would need to upload their key to the PGP keyring on the mailing list server.
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