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Mails to yahoo, gmail and hotmail fail w/Permanent Error

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jonpoor
jonpoor
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Comcast/Xfinity is binning email sent from Thunderbird to yahoo, gmail or hotmail

This problem started on April 24.

I have compared the Mozilla info at the front of emails sent to my wife before and after April 24. The only differences other than Subject and content are: 

    From - Mon, 22 Apr 2024 16:34:28 GMT
    From - Sat, 27 Apr 2024 08:10:47 GMT

    Message-ID: <c43e9437-1603-41fe-bc73-699c2ac4ddb0@acm.org>
    Message-ID: <ce6cfda0-24b8-4503-9838-2d16fe8fbe94@acm.org>

    Date: Mon, 22 Apr 2024 09:34:26 -0700
    Date: Sat, 27 Apr 2024 01:10:45 -0700

- The Message-IDs are identified as @acm.org - My sending address with Thunderbird is @acm.org - My ISP for Thunderbird is @comcast.net - If I send from xfinity.com which is comcast, the emails succeed - If I send from Thunderbird, the emails fail as follows

Emails to yahoo get:

Diagnostic-Code: smtp; 554 5.7.9 Message not accepted for policy reasons. See https://senders.yahooinc.com/error-codes

Emails to gmail get:

Diagnostic-Code: smtp; 550-5.7.26 Unauthenticated email from acm.org is not accepted due to domain's

Emails to hotmail get:

Diagnostic-Code: smtp; 550 5.7.509 Access denied, sending domain [ACM.ORG] does not pass DMARC verification and has a DMARC policy of reject. [PU4P216MB1581.KORP216.PROD.OUTLOOK.COM 2024-04-28T07:03:54.765Z 08DC66942A10A029] [AS9PR06CA0096.eurprd06.prod.outlook.com 2024-04- 28T07:03:54.886Z 08DC65C282FFA777] [AMS0EPF000001B7.eurprd05.prod.outlook.com 2024-04-28T07:03:54.887Z 08DC66AF862E5B46]

Comcast/Xfinity is binning email sent from Thunderbird to yahoo, gmail or hotmail This problem started on April 24. I have compared the Mozilla info at the front of emails sent to my wife before and after April 24. The only differences other than Subject and content are: From - Mon, 22 Apr 2024 16:34:28 GMT From - Sat, 27 Apr 2024 08:10:47 GMT Message-ID: <c43e9437-1603-41fe-bc73-699c2ac4ddb0@acm.org> Message-ID: <ce6cfda0-24b8-4503-9838-2d16fe8fbe94@acm.org> Date: Mon, 22 Apr 2024 09:34:26 -0700 Date: Sat, 27 Apr 2024 01:10:45 -0700 - The Message-IDs are identified as @acm.org - My sending address with Thunderbird is @acm.org - My ISP for Thunderbird is @comcast.net - If I send from xfinity.com which is comcast, the emails succeed - If I send from Thunderbird, the emails fail as follows Emails to yahoo get: Diagnostic-Code: smtp; 554 5.7.9 Message not accepted for policy reasons. See https://senders.yahooinc.com/error-codes Emails to gmail get: Diagnostic-Code: smtp; 550-5.7.26 Unauthenticated email from acm.org is not accepted due to domain's Emails to hotmail get: Diagnostic-Code: smtp; 550 5.7.509 Access denied, sending domain [ACM.ORG] does not pass DMARC verification and has a DMARC policy of reject. [PU4P216MB1581.KORP216.PROD.OUTLOOK.COM 2024-04-28T07:03:54.765Z 08DC66942A10A029] [AS9PR06CA0096.eurprd06.prod.outlook.com 2024-04- 28T07:03:54.886Z 08DC65C282FFA777] [AMS0EPF000001B7.eurprd05.prod.outlook.com 2024-04-28T07:03:54.887Z 08DC66AF862E5B46]

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