On Tue, Jan 06, 2004 at 12:09:19PM -0800, Kelson Vibber wrote:
| In the day since we turned this on, we've had 6 hits, but only two have
| actually included the username. The rest only show up as queries for
| ipaddress._spf.speed.net. We can't tell whether those other messages were
| from valid remote users or from spammers.
|
| - Some SPF implementations don't expand %{u}
try replacing %{u} with %{l}.
For a while I wanted to support both %{u} and %{l}, but people said I
should pick one or the other, and so "l" won because "localpart" is more
up-to-date than "username". I'm still in favour of putting both in but
that sort of thing seems too Perlish and draws ire from formalists.
Your use of "exists" is otherwise perfectly correct and used for the
same purpose by other domains.
20040106-15:15:42 mengwong(_at_)dumbo:~% dig +short altavista.com txt
"All mail claiming to be from altavista.com is forged"
"v=spf1 +exists:CL.%{i}.FR.%{s}.HE.%{h}.null.spf.altavista.com -all"
"This domain sends no email"
"Null SPF is for tracking purposes only"
20040106-15:15:53 mengwong(_at_)dumbo:~%
-------
Sender Permitted From: http://spf.pobox.com/
Archives at http://archives.listbox.com/spf-discuss/current/
Latest draft at http://spf.pobox.com/draft-mengwong-spf-02.9.4.txt
To unsubscribe, change your address, or temporarily deactivate your
subscription,
please go to
http://v2.listbox.com/member/?listname(_at_)©#«Mo\¯HÝÜîU;±¤Ö¤Íµø?¡