Unable to send emails to Yahoo accounts

Anonymous
2024-03-09T03:41:19+00:00

Starting a couple of days ago, I am unable to send emails to Yahoo accounts from my Outlook email. Here is the error message I receive:

Your message wasn't delivered. Despite repeated attempts to deliver your message, a connection to the remote server was closed abruptly.

Contact the recipient by some other means (by phone, for example) and ask them to tell their email admin that it appears that your email system is unable to connecto their email system. Give them the error details shown below. It's likely that the recipient's email admin is the only one who can fix this problem.

For Email Admins
This often indicates the recipient's firewall SMTP fixup setting or other firewall settings are preventing the SMTP protocol negotiation from succeeding.

For more information and tips to fix this issue see this article: https://go.microsoft.com/fwlink/?LinkId=389361. 

I went to the link suggested, and did not understand the instructions. Please assist. Thank you.

Outlook | Windows | Classic Outlook for Windows | For home

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  1. Anonymous
    2024-03-14T00:18:56+00:00

    Even after updating DKIM DMARC and SPF its failing then

    EX736432

    Title:

    Some users may be unable to send, or see delays up to two hours when sending email messages through Exchange Online

    User impact:

    Users may be unable to send, or see delays up to two hours when sending, email messages through Exchange Online.

    More info:

    These failures and delays could occur when sending email through any Exchange Online connection method. Users may receive a Non-Delivery Report (NDR) when a message fails to send.

    Current status:

    We discovered that a recent change intended to resolve another ongoing issue was enabled and introduced unbalanced network traffic to the affected infrastructure, leading to impact. To resolve the issue, we've disabled this change and are monitoring the infrastructure to confirm it remediates impact.

    Scope of impact:

    Some users who are serviced through the affected infrastructure and are sending email messages through any Exchange Online connection methods may be impacted.

    Start time:

    Sunday, March 10, 2024, at 7:00 PM UTC

    Root cause:

    A recent change intended to resolve another ongoing issue was enabled and introduced unbalanced network traffic to the affected infrastructure, leading to impact

    Next update by:

    Thursday, March 14, 2024, at 4:00 AM UTC

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  2. Ron-6928 4,991 Reputation points
    2024-03-13T21:01:28+00:00

    If you use custom domain name and did not create necessary DNS records (SPF, DMARC, DKIM) for your domain, you are responsible for the fix.

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  3. Anonymous
    2024-03-13T20:26:15+00:00

    I am having the same issue as well.

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  4. Anonymous
    2024-03-12T20:43:48+00:00

    Actually thats beyond my computer savvy. I dont know the term DKIM

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  5. Ron-6928 4,991 Reputation points
    2024-03-12T18:15:10+00:00

    I know where the rotate keys is and I just did that several weeks ago or earlier this year (I can't remember the exact time). My "deferred" email to Yahoo seems to have been resolved on its own. I see 2 email delivered instantly. One of them comes from the same (Microsoft SMTP) IP address that had a (SuspiciousRemoteServerError) problem yesterday. No problem today. Whatever it is, it's not DNS issue.

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