Outlook Issue

Question

Hi there

I have a problem with Exchange Server; users can receive emails but not send them using Outlook alone. However, they can send and receive emails using OWA.

Answer 1

Hi, @Mahmoud Teleb

Can you provide more information so that I can take the next step in troubleshooting?

1.Did the user with the issue receive an NDR (Non-Delivery Report) email? You can provide a screenshot of the relevant error.

2.Does the issue affect all users or a specific user?

3.Has the issue persisted? Did you make any setting changes before the problem occurred?

4.Is the user's email address located on-premise or in the cloud?

5.Can't send mail to internal users or can't send mail to external users? Is it impossible to send email to a specific domain?

Here are some common suggestions you can try:

1.Check if the MX record is set up correctly.

2.Check if there are mail flow rules that affect all users sending emails.

3.Check if Outlook is offline. Make sure you're connected to the internet.

4.Create a new profile to see if it works.

More information can be found I can't send or receive messages in Outlook - Microsoft Support

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