Re: Re: faked from addresses getting through to my lists

On 15 June 2004 at 14:11, rgball <[email protected]> wrote:

> On Tue, 15 Jun 2004 11:55:24 -0500, Terry Todd wrote
> > 
> > The original problem is spam got through to a smartlist mailing list
> > by header information being faked.  How can that be prevented?  
> 
> It can't be prevented unless you force all your subscribers to send a special "password" header 
> in their email or you moderate the list.
> 
> The closest you can come is to accept messages from subscribers only but there is no way to be 
> 100% certain that the message is coming from who the From: says it is from.
> 
> > What do others using smartlist do to prevent this from happening?
> 
> You can prevent having your address spoofed by adding special headers as Jim mentioned and 
> then checking for those.

I've toyed with keeping a whitelist of accepted PGP keys and only
accepting email from users who provide a valid signature.  Is this
even someone reasonable?

James

--
James P. Howard, II  --  [email protected]
http://www.jameshoward.us/  --  202-390-4933