On 6 February 2024 20:51:59 Odhiambo Washington via mailop
<[email protected]> wrote:
Today morning I woke up to all emails being rejected as I was using
zen.spamhaus.org in my dnslists.
Almost all incoming emails - even from gmail.com - were being rejected.
Did I maybe miss something
Are you checking the return codes from the lookup for validity, or just
rejecting on a return code existing?
If you're using public resolvers, or your own resolvers are over the query
threshold that's documented by SH, you'll need to register. Their docs are
very clear and helpful.
Graeme
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