I saw you've since cleaned up the SPF record a bit to remove the IPv6 a/mx entries. Did that fix it?
If not, this might actually be worth submitting to them to point out that they may be parsing it wrong: https://support.google.com/mail/contact/gmail_bulk_sender_escalation Regards, Al Iverson On Thu, Feb 15, 2024 at 12:21 PM Eric J Esslinger via mailop <[email protected]> wrote: > > My SPF records have been valid for... oh 10 years or so, and haven't changed, > but the last two days I'm getting intermittent bounces sending to gmail.com > addresses from our customer domain. > I've sent a couple of emails to [email protected] but I'm not sure it's > monitored. Anyone else seeing such issues? > > Hi. This is the qmail-send program at mail.fpunet.com. > I'm afraid I wasn't able to deliver your message to the following addresses. > This is a permanent error; I've given up. Sorry it didn't work out. > > <[email protected]>: > 142.250.105.27 failed after I sent the message. > Remote host said: 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 [fpunet.com] with ip: [104.171.208.42] = 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 > t8-20020a25f608000000b00dcbcc921879si776036ybd.61 - gsmtp > > > dig @8.8.8.8 txt fpunet.com > > ; <<>> DiG 9.3.6-P1-RedHat-9.3.6-25.P1.el5_11.10 <<>> @8.8.8.8 txt fpunet.com > ; (1 server found) > ;; global options: printcmd > ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 43644 > ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 > > ;; QUESTION SECTION: > ;fpunet.com. IN TXT > > ;; ANSWER SECTION: > fpunet.com. 900 IN TXT "v=spf1 +mx a:mail.fpunet.com > ip4:104.171.208.42 ip6:2602:FD43:0:2::42 -all" > > ;; Query time: 38 msec > ;; SERVER: 8.8.8.8#53(8.8.8.8) > ;; WHEN: Thu Feb 15 11:59:10 2024 > ;; MSG SIZE rcvd: 115 > > > Eric Esslinger ([email protected]) > Information Services Manager > Fayetteville Public Utilities (http://www.fpu-tn.com/) > 408 College St W > Fayetteville, TN 37334-2914 > 1-931-433-1522 x 165 > 1-800-379-2534 x 165 > Fax: 1-931-433-0646 > > This message may contain confidential and/or proprietary information and is > intended for the person/entity to whom it was originally addressed. Any use > by others is strictly prohibited. > _______________________________________________ > mailop mailing list > [email protected] > https://list.mailop.org/listinfo/mailop -- Al Iverson / Deliverability blogging at https://www.spamresource.com Subscribe to the weekly newsletter at https://ml.spamresource.com DNS Tools: https://wombatmail.com / (312) 725-0130 / Chicago _______________________________________________ mailop mailing list [email protected] https://list.mailop.org/listinfo/mailop
