Le dimanche 25 Juillet 2004 23:19, Frank Ellermann a écrit :
it is the 'legitimate senders' who are intended to read this
message, i.e. they are frequently humans who were intending
to communicate with the recipient, and who probably share
with the intended recipient his/her preferred language of
communication.
Impossible to determine at the time of SMTP / SPF checks. All
you have at this moment are some IPs and domains. And because
it's about a FAIL we're wasting time and bandwidth to "explain"
SPF to a trojaned Spamcast zombie.
No, no, no.
Remember: it's the (alleged) SENDER domain that choses the error message to
send back by putting it into its (optional) custom DNS record for this
purpose.
So it's not the receiving MTA that needs to decide in which language to return
the error. The receiving MTA just needs to use the sender's domain SPF custom
error string, if provided.
The sender domain is supposed to KNOW if its users are french or german or
spanish or international, and to choose their custom error message
accordingly (that even can redirect to a multilingual webpage).
This is a non-issue for the receiving domain's MTA. It just needs to send the
sender's custom error message, if provided. And if *not* provided, then it
can send whatever error message it wants ;-) assuming that if the sender
domain doesn't publish a custom error message, it means that they don't
care ;-))
--
Michel Bouissou <michel(_at_)bouissou(_dot_)net> OpenPGP ID 0xDDE8AC6E