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1.1
date	2024.12.05.09.08.29;	author vins;	state Exp;
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commitid	Gh3txZV8No2raiAF;


desc
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1.1
log
@mail/opensmtpd-filter-spfgreylist: initial import

This filter implements greylisting, allowing OpenSMTPD to temporarily
reject sessions of clients it has not seen before. Unlike many
implementations, this one is SPF-aware so it will properly handle
greylisting for domains doing relaying through multiple MX, as long as
they publish a valid SPF record.
@
text
@This filter implements greylisting, allowing OpenSMTPD to temporarily
reject sessions of clients it has not seen before. Unlike many
implementations, this one is SPF-aware so it will properly handle
greylisting for domains doing relaying through multiple MX, as long as
they publish a valid SPF record.

The filter currently supports:

* IPv4 and IPv6 address greylisting
* SPF greylisting
* startup whitelisting of IP and domains
* automatically renewed whitelisting
@