Why are my emails to AOL.COM and Yahoo.com Undeliverable?

Question

Why are my emails to AOL.COM and Yahoo.com Undeliverable?

Anonymous

Starting on Friday March 8th, my emails to Aol.com and Yahoo.com users are being marked as "Undeliverable." The error messages are:

"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." Also, Your message couldn't be delivered. Despite repeated attempts to contact the recipient's email system it didn't respond."

I have a 365 Family account and my husband is on AOL.COM. We called AOL and they insist that it is a Microsoft problem. The diagnostic information is below.

Diagnostic information for administrators:

Generating server: IA1PR14MB7245.namprd14.prod.outlook.com
Receiving server: IA1PR14MB7245.namprd14.prod.outlook.com
Total retry attempts: 1

___@___.___
3/10/2024 11:21:02 PM - Server at IA1PR14MB7245.namprd14.prod.outlook.com returned '550 5.4.300 Message expired -> 421 4.4.2 Connection dropped due to SocketError'
3/10/2024 11:11:00 PM - Server at mx-aol.mail.gm0.yahoodns.net (98.136.96.93) returned '421 4.4.2 Connection dropped due to SocketError'

Original message headers:

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 2024 22:55:22 +0000

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 Microsoft SMTP Server (version=TLS1_2,

 cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7362.33; Sun, 10 Mar

 2024 21:24:59 +0000

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 2024 10:24:11 +0000

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 23:16:35 +0000

From: Susan Florentino <___@___.___>

To: Rico Meyer <___@___.___>

Subject: Fwd: Your confirmation receipt: OOBSIA for your flight on 10/25/24.

Thread-Topic: Your confirmation receipt: OOBSIA for your flight on 10/25/24.

Thread-Index: AQHacnUbUTd+p8U4RUCFZkhMfQ0S7rEwCrIn

Date: Sat, 9 Mar 2024 23:16:34 +0000

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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.

0 comments

3 answers

Answer 1

It shows that deeper investigation needs to be conducted. Please consider coordinating with the dedicated Outlook.com In App team for them to personally look into your account and the back-end server:

Go to https://outlook.live.com and sign into your account.

Click the Help tab.

Select Help on the ribbon.

In the Help pane on the right side of the search box, type Contact Support.

Click the Yes button below the "Still need help?" prompt.

Click the Chat with a support representative option and follow the on-screen instructions.

I am honored to be part of this journey of yours.

Answer 2

Appreciate your response, but none of the conditions described were pertinent to my situation. The problem was limited to two individuals, with Yahoo and AOL emails. Although AOL "support" stated that it was a Microsoft issue, I read some other online articles indicating that those two domains made some changes that probably caused the issue. The Outlook program was working correctly aside from not delivering emails to AOL and Yahoo. That and the fact that the problem resolved itself without any changes to Outlook tells me it was a Yahoo and AOL problem.

Answer 3

Hi Susan, this is Bryll

Thank you for taking getting this to our attention.

According to your post, it sounds like you're experiencing issues with sending emails to AOL and Yahoo users. This issue could be caused by a number of factors, including incorrect email settings or a problem with the recipient's email server.

To troubleshoot this issue, I recommend checking your email settings to ensure that they are correct. You can also try sending a test email to another email address to see if the issue persists.

If you use your own domain name, be sure you have valid SPF, DMARC records. Read this article: https://learn.microsoft.com/en-us/microsoft-365/security/office-365-security/email-authentication-spf-configure?view=o365-worldwide

If problem remains, these are some other tactics that correspond with the described problem:

Check Recipient Address: Double-check that the recipient’s email address is correctly entered. Ensure there are no typos or other errors in the address.
Validate Account in Outlook: Open Outlook. Go to File -> Account Settings -> Account Settings. Ensure your Microsoft account (the one with the shared subscription) is listed and set as the primary account.
Check Subscription Online: Sign in to your Microsoft account online. Under “Subscriptions”, verify that the shared Microsoft 365 subscription is listed as active for your account.
Clear Outlook Cache: Close Outlook completely. Press Windows Key + R to open the ‘Run’ dialog. Type %localappdata%\\Microsoft\\Outlook\\RoamCache and press Enter. Delete all the files inside this folder. Restart Outlook
Force Synchronization: In Outlook, go to the “Send/Receive” tab. Click on "Update Folder".
Allow Time: If you’ve recently accepted the subscription, wait a few hours and try again.

Additionally, since we've created a dedicated support team in the Outlook online Platform focused on researching Outlook.com online server and have richer experience and knowledge with them, it's also recommended to contact In-App Support directly for checking into your account for deeper investigation:

Go to https://outlook.live.com and sign into your account.

Click the Help tab.

Select Help on the ribbon.

In the Help pane on the right side of the search box, type Contact Support.

Click the Yes button below the "Still need help?" prompt.

Click the Chat with a support representative option and follow the on-screen instructions.

We hope that you will find our shared information helpful.

Best regards,

Bryll

Community Moderator

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Why are my emails to AOL.COM and Yahoo.com Undeliverable?

3 answers