SMTP over IPv6 : gmail classifying nearly all IPv6 mail as spam since 20140818

Nick Hilliard nick at
Sat Aug 23 12:57:37 CEST 2014

On 22 Aug 2014, at 17:56, Lorenzo Colitti <lorenzo at> wrote:
>  I'm not on the gmail team and don't have those numbers. Nick asked me for an answer, and I gave him what information I have. My assumption was that since they do receive a lot of email, they have statistics on this, but of course you may not agree with that assumption and assume that they're just doing this for whatever other arbitrary reason.

No doubt they're good at what they do, but if mta operators felt that Google's FP detection rate was acceptable for v6 originated mail, we wouldn't be having this discussion - particularly as the other major mail operators don't appear to have this issue. 


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