Re: SMTP RFC: "MUST NOT" change or delete Received header

> What do people today think of the SMTP RFC's current requirement that
> mail programs and servers must not under any circumstances change or
> delete Received: headers?
as someone who has to debug email problems, they are very very helpful

> Is exposing sender IP addresses to any attacker who can view e-mail
> headers
perhaps an apporach would be to limit who can view email headers

randy