On 11 May 2020, at 04:24, Jaroslaw Rafa <r...@rafa.eu.org> wrote: > Someone told me… that Google is more likely to classify email from small > senders as spam if they are sent via IPv6, and less likely if they are sent > via IPv4.
Short of Google publishing this information, I doubt that anyone knows this, and suspect this was merely someone’s guess, possibly informed, but probably just a WAG. What is probably true is that Google is more likely to mark mail from servers without a valid rDNS as spam, and perhaps more IPv6 hosts do not do their rDNS correctly? -- "If I were willing to change my morals for convenience or financial gain, we wouldn't be arguing, because I'd already *be* a Republican." -- Wil Shipley