Re: TECH-ERROR (-core): introduction

On Tue, Sep 07, 2004 at 12:18:16PM +0100,
 Tony Finch <dot(_at_)dotat(_dot_)at> wrote 
 a message of 13 lines which said:

> Sender-ID can only reliably identify unforged email. It cannot
> reliably identify forged email, because it falsely rejects
> legitimate email if it has been alias-forwarded, or if it was sent
> by a roaming user.
I suggest to elaborate a bit. SenderID is not SPF and has better
features to deal with alias-forwarded messages (submitter, PRA).