Milter-greylist

Hi Emmanuel,

On Mon, 8 Aug 2011 04:40:52 +0200, manu@... wrote:
> lists-yahoogroups@... <lists-yahoogroups@...> wrote:
> 
>> I'd like "reduce" milter-greylist to one function: do URL lookups
>> (checking the recipient through a webservice) 
>> and reject (not greylist) emails with a "554 5.7.1" code if the answer
of
>> the lookup is not "milterGreylistStatus: Ok". It's a kind of call
>> forward/ahead against an internel webbased service and not against a
smtp
>> server like "md_check_against_smtp_server" function in mimedefang.
> 
> milter-greylist can do that, but what is your question?

I'm not sure about the config, especially the ACL. Could you give me an
example. My idea is something like this

 urlcheck "myfilter" "http://domain/check.cgi?rcpt=%r"
 # put invalid recps to an blacklist
 acl blacklist urlcheck "myfilter"
 # whitelist for valid recps
 acl whitelist default

And what should the check.cgi give back in case of invalid recipient?

 milterGreylistStatus: Ok
 milterGreylistCode: 554
 milterGreylistECode: 5.7.1
 milterGreylistMsg: unknown user

And what in case of an valid recipient:

  milterGreylistStatus: Ok
  milterGreylistCode: 250
  milterGreylistECode: 2.1.5
  milterGreylistMsg: Recipient ok

And is caching for previously checked recipients possible (valid and
invalid) for about 1 hour?

Cheers
Marcus