Emails not being received by other recipients

Hi @Sonja Bezuidenhout,

Welcome to Microsoft Q&A Forum.

Thanks for bringing this up your email delivery issues. In order to assist you with more accuracy, could you provide me some additional information related to your situation?

1. Is this happening with one specific recipient or multiple?
2. Are you getting any bounce-back or error messages when you send the email? Some examples such as: “Mailbox not found” “Message rejected due to spam content” “Server temporarily unavailable”
3. Do you know what email provider the recipient is using (e.g., Gmail, Outlook, Yahoo, corporate account)?
4. Have they checked their spam/junk folder or any email filtering rules?

Once I have a clearer understanding of your current situation, I’ll be happy to assist you with greater accuracy. Please feel free to share any additional details you believe are relevant. Screenshots are especially helpful and much appreciated.

In the meantime, I recommend sending an email to a different address and then replying to yourself from that address to check if the message goes through. This can help narrow down the issue.

Additionally, since your account is a work account managed by your organization, you may want to ask your IT administrator to perform a message trace using the steps outlined in this article: Message trace in the new EAC in Exchange Online | Microsoft Learn

This action will help you track down if your email has been throughout sent to your clients.

Note: Please understand that our initial response does not always resolve the issue immediately. However, with your help and more detailed information, we can work together to find a solution.

I hope this information is helpful. Please follow these steps and let me know if it works for you. If not, we can work together to resolve this. 

Thank you for your patience and your understanding. If you have any questions, please feel free to reach out. 

I'm looking forward to your reply.