I just received back a bounce that was delivered to my @live.com address, the one that sent the test message a few days ago. Here is what it contains:
------------------------------- Undeliverable: Test 1 postmas...@outlook.com You Delivery has failed to these recipients or groups: Jim Popovitch (jim...@domainmail.org)<mailto:jim...@domainmail.org> Your message wasn't delivered because the recipient's email provider rejected it. Diagnostic information for administrators: Generating server: PH8PR20MB5100.namprd20.prod.outlook.com Receiving server: PH8PR20MB5100.namprd20.prod.outlook.com jim...@domainmail.org 6/28/2024 8:04:14 PM - Server at PH8PR20MB5100.namprd20.prod.outlook.com returned '550 5.7.324 dnssec-invalid: Destination domain returned invalid DNSSEC records(450 4.7.324 dnssec-invalid: Destination domain returned invalid DNSSEC records)' 6/28/2024 7:53:59 PM - Server at domainmail.org (3.16.240.230) returned '450 4.7.324 dnssec-invalid: Destination domain returned invalid DNSSEC records [Message=450 4.7.324 dnssec-invalid: Destination domain returned invalid DNSSEC records] [LastAttemptedServerName=domainmail.org] [LastAttemptedIP=3.16.240.230:25] [SmtpSecurity=12;0] [DM3NAM02FT028.eop-nam02.prod.protection.outlook.com 2024-06- 28T19:54:14.133Z 08DC91E14BFC7324](450 4.7.324 dnssec-invalid: Destination domain returned invalid DNSSEC records)' Original message headers: <snipped, but available upon request> ------------------------------- On Fri, 2024-06-28 at 14:49 -0400, Jim P. via mailop wrote: > Hello! > > I have an odd deliverability problem. Microsoft is trying (over and > over) to send me emails, and they get past connect/disconnect. This > has > been going on for a few days now, at a rate of once every 5 seconds. > I've tested verified that everything about my mail flow is working > fine > and passes DANE/DNSEC/etc. In the past few days I've received > hundreds, > if not more, of emails from across the email spectrum, all without any > problems. > > My first thoughts were that this was some new monitoring by Microsoft > of > external systems that have recently sent emails to Microsoft (like > when > the neighbor brings you some cookies, you'll tend to keep a closer eye > on their house) I even went so far as to test sending myself an email > from a live.com address, it never arrived. > > Is there someone from Microsoft/Outlook that could look into what your > connections below are trying to achieve and then give me a hint of > what > I might do differently. Thanks! > > > Jun 28 17:49:48 mx1.domainmail.net postfix/postscreen[20270]: CONNECT > from [40.107.91.96]:39489 to [10.10.5.25]:25 > Jun 28 17:49:54 mx1.domainmail.net postfix/postscreen[20270]: PASS OLD > [40.107.91.96]:39489 > Jun 28 17:49:54 mx1.domainmail.net postfix/smtpd[21597]: connect from > mail-dm3gcc02on2096.outbound.protection.outlook.com[40.107.91.96] > Jun 28 17:49:54 mx1.domainmail.net postfix/smtpd[21597]: Trusted TLS > connection established from mail- > dm3gcc02on2096.outbound.protection.outlook.com[40.107.91.96]: TLSv1.2 > with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits) > Jun 28 17:49:54 mx1.domainmail.net postfix/smtpd[21597]: disconnect > from mail-dm3gcc02on2096.outbound.protection.outlook.com[40.107.91.96] > ehlo=1 starttls=1 quit=1 commands=3 > Jun 28 17:49:59 mx1.domainmail.net postfix/postscreen[20270]: CONNECT > from [40.107.244.134]:4160 to [10.10.5.25]:25 > Jun 28 17:50:05 mx1.domainmail.net postfix/postscreen[20270]: PASS NEW > [40.107.244.134]:4160 > Jun 28 17:50:05 mx1.domainmail.net postfix/smtpd[21630]: connect from > mail-mw2nam12on2134.outbound.protection.outlook.com[40.107.244.134] > Jun 28 17:50:05 mx1.domainmail.net postfix/smtpd[21630]: Trusted TLS > connection established from mail- > mw2nam12on2134.outbound.protection.outlook.com[40.107.244.134]: > TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits) > Jun 28 17:50:05 mx1.domainmail.net postfix/smtpd[21630]: disconnect > from mail- > mw2nam12on2134.outbound.protection.outlook.com[40.107.244.134] ehlo=1 > starttls=1 quit=1 commands=3 > Jun 28 17:50:05 mx1.domainmail.net postfix/postscreen[20270]: CONNECT > from [2a01:111:f403:200a::711]:13313 to [fd10:10:5::25]:25 > Jun 28 17:50:11 mx1.domainmail.net postfix/postscreen[20270]: PASS NEW > [2a01:111:f403:200a::711]:13313 > Jun 28 17:50:11 mx1.domainmail.net postfix/smtpd[21597]: connect from > mail- > mw2nam12on20711.outbound.protection.outlook.com[2a01:111:f403:200a::71 > 1] > Jun 28 17:50:12 mx1.domainmail.net postfix/smtpd[21597]: Trusted TLS > connection established from mail- > mw2nam12on20711.outbound.protection.outlook.com[2a01:111:f403:200a::71 > 1]: TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits) > Jun 28 17:50:12 mx1.domainmail.net postfix/smtpd[21597]: disconnect > from mail- > mw2nam12on20711.outbound.protection.outlook.com[2a01:111:f403:200a::71 > 1] ehlo=1 starttls=1 quit=1 commands=3 > > -Jim P. > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://list.mailop.org/listinfo/mailop _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
