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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.
Using Classic Outlook on Windows for personal email, calendar, and contact management
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
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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.
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
I also have this issue. My email is a personal one that I have used for around 10 years.
Unfortunately I have no idea how to follow your instructions as I am not an IT technician.
Is there anything you can do at your end ?
Can you get to your admin site on Microsoft 365?
I am having the same issue. All yahoo accounts are not deliverable.