Hi, On Fri, Jan 02, 2026 at 07:21:56PM +0000, Slavko via mailop wrote: > Dňa 2. januára 2026 18:37:39 UTC používateľ John Levine via mailop > <[email protected]> napísal: > > >Yup. I have rDNS, SPF, and DKIM and a p=none DMARC policy and Google likes > >my IPv6 mail just fine. They said several yeaars ago that that all mail they > >accept over IPv6 has to be authenticated. > > I am surprised, why people know do that for IPv4 and do not know do that for > IPv6?
People often haven't thought about IPv6 at all and are surprised to find that software on their servers has been merrily connecting out using an automatically configured source IPv6 address they never noticed they had until they look at things like email headers. (Also neglecting IPv6 firewalling for same reasons) Thanks, Andy -- https://bitfolk.com/ -- No-nonsense VPS hosting _______________________________________________ mailop mailing list [email protected] https://list.mailop.org/listinfo/mailop
