On Sun, 20 Jun 2004, Greg Connor wrote:
On Sat, 19 Jun 2004, Greg Connor wrote:
Layer 1: PRA and MAIL FROM+SRS (and eventually SUBMITTER)
These should normally bind strongly to IP as well.
--Tony Finch <dot(_at_)dotat(_dot_)at> wrote:
Note that in order for the PRA algorithm to work it requires all
forwarders to change their software to add a header (Resent-Sender)
using semantics explicitly excluded by RFC 2822.
Excluded? why? RFC2822 forbids us from adding headers to a message? I
don't believe that is really true.
It says that the Resent- headers are for MUA resending, not for MUA
encapsulated-message forwarding and not for /etc/aliases or .forward
forwarding. Read the paragraph starting "Note:" in section 3.6.6 of RFC
2822.
At any rate, the multiple headers that make up the PRA were chosen
carefully -- those are the headers that most forwarders and many MTAs
*Already* add to their forwarded mail, so many forwarders will not have to
change anything -- those that do will just need to upgrade their MTA to the
latest version or edit a config file.
That is incorrect regarding the behaviour of MTAs. The Caller-ID draft
explicitly says that they require all alias-forwarders to change their
software. Read section 3.2.3 of draft-atkinson-callerid-00.
--
Tony Finch <dot(_at_)dotat(_dot_)at> http://dotat.at/