If Microsoft Outlook is not sending emails, the solution may be as simple as changing a setting. However, it can also be a little more complicated. By following basic troubleshooting steps, you can help Outlook resolve the issue of not sending emails.

Sometimes resending the email helps.

Right-click the email stuck in Outbox, point to Move, and then choose the Drafts folder.

Open the email in the Drafts folder and click Send.