Hallam-Baker, Phillip wrote:
The only way to resolve this issue properly would be to require every submission to an IETF mailing list to be cryptographically signed [and] to require the subscribers to register their signing key
And how do we prevent spammers from registering their signing key? Are you suggesting that we change the IETF's open enrollment policy? -- Aaron Swartz [http://www.aaronsw.com]