Errors when sending or receiving email in Outlook.com or Hotmail

Hi morgane lavallée,

Thanks for posting in the Microsoft Community forum.

Based on your description, it appears to be that you are unable to send and receive emails in your Outlook.com or Hotmail account. There are a number of possible reasons why you are not able to send emails. It could be due to the server issue or something else. Let's work together to find a solution to this problem.

I would like to inform you that in the last 24 hours, several users have reported such an issue. Specifically, it's about sending an email with a PDF file as an attachment. Microsoft was aware of the issue and our engineering team had already worked on the issue. And as of today, this issue has been fixed. Please check at your end if you can now send emails.

However, if this is not related to your problem, I would like to ask for this information;

• Can you provide us with a screenshot of the exact error message? In this way we can see a bigger picture of the problem.
• Does this happen when you send emails to all of your contacts or just to a specific email address?
• When did the problem start?
• Are you sending emails with an attachment?

I look forward to hearing from you.

Sincerely

ReynaldoB

Microsoft Community Forum Moderator

Hello morgane lavallée!

We haven't heard from you, so we assume that your issue has already been addressed. We will not be monitoring this thread moving forward so, if you need further assistance, please create a new thread to discuss these concerns by clicking this link: Create a new question

Thank you for your understanding. 

Sincerely

ReynaldoB

Microsoft Community Forum Moderator

Getting an error message when sending and receiving emails on Outlook

Hi in the past week any emails I send from my hotmail account to yahoo accounts are being returned. If I send emails from my work outlook account to these same emails they go through. Is yahoo now blocking hotmail emails? I have attached picture of error message it get.

This is the error message I receive when I try to send a msg in Outlook (New) of Microsoft 365:

We couldn't deliver your message.

Original message details

Created date: 11/28/2023 8:11:33 PM

Sender address: d_******@hawaii.rr.com

Recipient addresses: d_******@hawaii.rr.com

Subject: test

Technical details

SmtpConnectionInvalidResponsePermanentException: Server 'mail.twc.com' Port '587' returned invalid response. Check your SMTP server settings. --> Unexpected SMTP server response. Expected: 220, actual: 554, whole response: 554 p-impout004.msg.pkvw.co.charter.net cmsmtp 52.96.220.101 blocked. Please see https://www.spectrum.net/support/internet/understanding-email-error-codes for more information. AUP#Out-1130

Failure code: 66fc

What is the correction, please?