[Top] [All Lists]

Re: 2821bis and address rewriting (was: Re: Fixing graylisting [was TBR])

2007-11-18 02:20:11

Hi John,
At 18:51 17-11-2007, ned+ietf-smtp(_at_)mrochek(_dot_)com wrote:
Agreed. But it needs to be clear that this applies to autoforwarders. How
about adding "and SHOULD NOT add a non-null reverse path to such a message
when forwarding".

I suggest the following change to Section 4.5.5 (Messages with a null reverse-path):

    If a reverse-path is null, it SHOULD NOT be modified as that is likely
    to cause a mail loop.

    Implementors of automated email processors should ensure that
    the various kinds of messages with a null reverse-path are handled
    correctly, in particular such systems SHOULD NOT reply to messages
    with a null reverse-path.