Alessandro Vesely writes:
Hi Sam and All,let me try and resume this: -allow=zone[,varspec]... By example --so as to solicit comments from more people-- the change enables to configure an additional variable in etc/esmtpd: WHITELISTS='-allow=swl.spamhaus.org' The default behavior is to set an empty BLOCK= so that if one had set BLACKLISTS='-block=...' with the same default variable, when the former lookup succeeds, the latter lookup is preempt(i)ed, so to say. Now for passing the results to global filters. In 2010 we thought of
I still think -allow is ok, but I don't see much need to do anything with regards to the headers. If the purpose is to allow per-recipient mail filtering, then environment variables set by couriertcpd should be accessible in rcptfilter and smtpfilter-based scripts for that purpose, and it's better to do it there.
And I'd rather keep it simple, and avoid the need to bring in PCRE. I'm not even quite sure why that's necessary. A DNSBL that offers multiple results should to it by returning pseudo-IP addresses, which couriertcpd should be able to handle.
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