On Sat, 2004-02-28 at 17:33 +0100, list+spf-discuss(_at_)doeblitz(_dot_)net
wrote:
AFAICS many people seem to believe that <> is only meant for bounces while
RFC2821 only states that bounces MUST be sent with that enevelope sender.
RFC2821 §4.5.5.
There are several types of notification messages which are required
by existing and proposed standards to be sent with a null reverse
path [...]
[...] All of these kinds of
messages are notifications about a previous message, and they are
sent to the reverse-path of the previous mail message. [...]
All other types of messages (i.e., any message which is not required
by a standards-track RFC to have a null reverse-path) SHOULD be sent
with with a valid, non-null reverse-path.
--
dwmw2