In past mailop posts, Brandon Long from Google has posted about that. For example, on September 12th, 2023: "And yes, we are continuing to ramp no auth, no entry."
There was also a more recent post on the list with additional details about their Feb. 1st changes. Hope this helps, -Jeffrey On Wed, Jan 24, 2024 at 9:48 PM Grant Taylor via mailop <mailop@mailop.org> wrote: > Hi, > > I knew that Google was going to start requiring SPF or DKIM (in addition > to other sender guidelines [1]. But I thought they were starting > February 1st, per their own sender guidelines. > > I saw a bounce from a system (cron job output) trying to send directly > to gmail.com, no forwarding involved. > > <<< 550-5.7.26 This mail has been blocked because the sender is > unauthenticated. > <<< 550-5.7.26 Gmail requires all senders to authenticate with > either SPF or DKIM. > <<< 550-5.7.26 > <<< 550-5.7.26 Authentication results: > <<< 550-5.7.26 DKIM = did not pass > <<< 550-5.7.26 SPF [redacted.example.net] with ip: [192.0.2.1] = > did not pass > <<< 550-5.7.26 > <<< 550-5.7.26 For instructions on setting up authentication, go to > <<< 550 5.7.26 > https://support.google.com/mail/answer/81126#authentication > d20-20020a05683025d400b006dc5452f468si4641458otu.190 - gsmtp > 554 5.0.0 Service unavailable > > Am I missing something obvious or has Google started implementing this > new requirement ahead of their published schedule? > > The only surprise to me is that this happened ~8 days before the > published February 1st date. > > [1] > > https://support.google.com/a/answer/81126#zippy=%2Crequirements-for-all-senders > > > > -- > Grant. . . . > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://list.mailop.org/listinfo/mailop > -- *Jeffrey Williams, Tech Lead* *Berkeley IT (bIT)* <https://technology.berkeley.edu/home> j...@berkeley.edu
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