Email Delivery issue

Question

Hello 

Please i need your help on this issue.

We are having issue with email delivery from outside our organization. 

Its only receiving emails from people inside my organization. 

When I tried to send an email from Gmail I received this error below:

Answer 1

Hello @IniobongNkanga-8038,

Welcome to the Microsoft forum for technical support.

Based on your description, your organization cannot receive external mail. I would like to confirm with you first:

1. What do you mean by "organization"?
2. Is the recipient using Exchange Online or Exchange On-premise?

If you are using Exchange server, I suggest you follow the steps below to solve it:

1. You need to correctly set up the mail exchange (MX) record of your domain (xx.com) to ensure that emails are directed to your organization's email server. Please refer to this link for the specific configuration process: Configure mail flow and client access on the Exchange server | Microsoft Learn
2. If your MX record is configured correctly, check any spam filtering service you use and verify that your firewall settings allow external emails to be received.
3. Try other types of accounts (such as Outlook.com) to send mail to the organization to see if the problem still exists.

Please feel free to contact me if you have any queries.

Best,

Jake Zhang