On Thursday 04 January 2007 10:52, Ramprasad wrote:
I am using postfix MTA
In that case you would probably be better off using a policy server for SPF
checks. Doing it via a milter provides additional complexity that in
unnecessary.
http://www.postfix.org/SMTPD_POLICY_README.html
There are a number of implementations listed on the SPF web site that already
support this:
http://www.openspf.org/Implementations
Including one C implementation (if that's what you want) - It's distributed
with libspf2:
http://www.libspf2.org/
<OT>
I havent used a milter with postfix before, but I have used a milter
with sendmail implementing watchdog ids, subject policies for select
users , etc
</OT>
The spf milter I plan to use seems to be pretty simple. Just one
convenience function and a call in mlfi_envrcpt()
I plan to ignore SPF HELO ( I am not sure if that is very important )
SPF HELO is a very low cost check, but does not match as often as Mail From
(not everyone has published SPF records for HELO, but they should). HELO
checks are a VERY reliable way to reject messages. It is unlikely to produce
false positives.
Additionally, what will you check if you get mail from <>?
Any comments on this code. ( not yet finished .. just request for
comments )
This kind of question is probably better directed to the spf-devel list. You
are more likely to get an answer there.
Scott K
-------
Sender Policy Framework: http://www.openspf.org/
Archives at http://archives.listbox.com/spf-discuss/current/
To unsubscribe, change your address, or temporarily deactivate your
subscription,
please go to http://v2.listbox.com/member/?list_id=735