On 16/02/2021 04:13, Jim Popovitch via mailop wrote:
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On Mon, 2021-02-15 at 18:53 +0100, Jaroslaw Rafa via mailop wrote: Dnia
15.02.2021 o godz. 15:43:56 Matthew Stith via mailop pisze: Wanted to
get this out to you all for awareness for anyone who is using
the Spamhaus public mirrors to query our DNSBLs. Beginning in March
Spamhaus will start enforcing the follow error return codes for these
news codes announced in 2019:
127.255.255.252 - Typing error in DNSBL Name
127.255.255.254 - Query via public/open resolver/generic unattributable
rDNS
127.255.255.255 - Excessive Number of Queries
The main thing to take away from this announcement is that these codes
are meant to be treated as errors and not an indicator of negative
reputation. The plugins that we have developed for Spamassassin and
Rspamd already properly parse out these errors. You can read more about
the change here:
Are these "error" codes covered by any RFC?
If not, I suppose that Wietse will refuse to implement them in Postfix
:)
Anyone can implement it in postfix. Just use:
postscreen_dnsbl_sites =
zen.spamhaus.org=127.0.0.[0..255]*3
If you are using a version so old that it doesn't support postscreen,
then Wietse isn't your friend.
- -Jim P.
breaking news: even those using latest versions postfix dont always see
postscreen as a good fit in their network, so even using the latest...
smtpd_recipient_restrictions =
...
reject_rbl_client
zen.spamhaus.org=127.0.0.[2..255]
...
--
Regards,
Noel Butler
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