On Tue, Feb 27, 2024 at 03:30:03PM -0700, Rob Nagler via mailop wrote: > gmail.com started failing messages from domains which are correctly setup > for SPF (and have been for some years): > > 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 [nagler.me] with ip: > [139.177.203.52] = did not pass 550-5.7.26 550-5.7.26 > > $ dig +short txt nagler.me > "v=spf1 a mx ip4:139.177.203.52 include:_spf.google.com -all" > > Sending to (paid) Google Workspace domains works fine. Nothing has changed > on our end, and failures only started this morning.
Any chance of a transient/intermittent DNS failure on nagler.me? On occasion I've seen spurious SPF/DKIM failures when there's been a flaky DNS server in the mix. - Matt _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
