What a mess. My domain used to be managed by domains.google.com, which got sold to Squarespace. I looked at my DNS records on Squarespace and I cannot find anything resembling normal DKIM records.
I do see a CNAME record for _domainconnect.domains.squarespace.com, which seems suspicious. I also see a CNAME record for *randomname* with the value *randomstring.* dv.googlehosted.com. How any of this ever worked I do not know. I think it is time to move my domain to Cloudflare and set up DKIM from scratch. On Thu, May 7, 2026 at 11:31 AM Thomas Krichel <[email protected]> wrote: > Stephen Daniel writes > > > 550 5.7.9 This mail has been blocked because the sender is > unauthenticated. > > Yahoo requires all senders to authenticate with either SPF or DKIM. > > Authentication results: DKIM = FAILURE - SPF XXX.org with ip X.Y.Z.W = > > SUCCESS. See > > https://senders.yahooinc.com/smtp-error-codes/#authentication-failures > for > > more information. > > This has worked for a long time. What would suddenly cause DKIM > failures? > > I just saw the same thing with all my yahoo subscribers. Yahoo are > the worst freemail provider I have come across. > > I contacted all my yahoo subscribers. They gave me non-yahoo addresses. > > -- > Written by Thomas Krichel http://openlib.org/home/krichel on his > 22252nd day. > _______________________________________________ Mailman-users mailing list -- [email protected] To unsubscribe send an email to [email protected] https://lists.mailman3.org/mailman3/lists/mailman-users.mailman3.org/ Archived at: https://lists.mailman3.org/archives/list/[email protected]/message/R5AKXNVSI4PFLYDVXBF5B57RM4PDVM7I/ This message sent to [email protected]
