Outlook I keep getting a error saying "Emails still Sending"

Hi @David Kerr, 

I hope you're doing well today. 

From your description, you are seeing the “Emails still Sending” message in the new Outlook when trying to send email.  

This notification typically appears when an email becomes stuck in your Outbox and New Outlook continues attempting to deliver it in the background. This situation can arise due to a temporary disruption in the connection to the mail server, an oversized attachment that was unable to complete the upload process, or an account sync issue between New Outlook and your mail settings. Rest assured, this is a known behavior and there are clear steps that will help get everything back on track. 

Below are some workable options that might be the most appropriate for your current situation: 

1/ Refresh network connection and restart Outlook 

• Close Outlook completely. 
• Disconnect from your network for about 10 seconds, then reconnect to a reliable connection. 
• Relaunch Outlook and allow it 1–2 minutes to fully sync your folders. 
• Send another small test email, and check your Sent Items folder to verify that it was delivered successfully. 

2/ Sign out and sign back into your account 

• Go to Settings (gear icon, top right) > Accounts > select your email account > Manage. 
• Click Remove Account, then add it back using your credentials. 

• This refreshes the connection between New Outlook and your mail server and clears any lingering sync errors causing the notification to appear. 
• Reference: Add an email account to Outlook for Windows - Microsoft Support 

3/ Repair or reset the Outlook app 

• On Windows, open Settings, select Apps, and locate Outlook (new). 
• Choose Advanced options, then select Terminate to stop the app entirely. 
• Next, select Repair, and once complete, reopen Outlook and send a test email. 
• If the problem persists, return to the same Advanced options page, choose Reset, sign back in, and try sending again. 

4/ Contact IT administrator:    

Since your account is managed by your organization, please contact your IT administrator to review your permissions and policies. If the issue persists after these checks, ask your IT administrator to submit a support request directly to Microsoft Support team.         

They can raise a support ticket by visiting: Get support - Microsoft 365 admin | Microsoft Learn    

As community moderators, we appreciate your understanding that our access to internal development details is limited. Our primary role is to guide users toward the appropriate resources and support channels. While we may not have visibility into deeper backend analysis, we’ll continue doing our best to support you within the scope of our responsibilities.        

I hope this information is helpful. Please follow these steps and let me know if it works for you. If you have any updates regarding the issue, please feel free to share them with me.          

Thank you for your patience and your understanding. I look forward to continuing the conversation.

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