You open your Outlook application, spend time composing an email, proofread and edit it, and finally hit the ‘Send‘ button when you are satisfied. However, a few minutes later, you realize your carefully crafted email is stuck in Outlook’s outbox. This scenario can make anyone feel uneasy. When users find their Outlook not sending emails, they feel clueless about what to do, especially if it’s an important work-related email. 

But you can make the application dispatch your message to the intended person. There are many simple fixes like resending the message, checking the internet connection, updating your password, and using Outlook in safe mode. Let’s go through these and other advanced measures for this issue in detail. 

Read Also – Why Outlook Not Receiving Emails

 

Simple Fixes for Outlook Not Sending Emails Problem

You can first employ a few quick fixes whenever your Outlook won’t send emails. Outlook Online users can also try these measures. If they don’t work, follow the advanced troubleshooting. 

• Try sending the message again. Open the mail present in your outbox and tap ‘Send.’ 
• Check your internet connection. Load a few websites and see how much time they take. You might be required to fix the connection if it is unstable. 
• Double-check the recipient’s email address. Add it to your address book, and then try sending the mail. 
• Find out if your inbox is full. Emails not sending in Outlook is also an outcome of a full inbox. Try to clear your junk folder by right-tapping ‘Junk Email‘ and choosing ‘Empty folder.’
• You may have gone well above the message limit set by Outlook for a day. You won’t be allowed to send any more messages on that day. So try sending the email the next day. 

 

Advanced Measures for Outlook Not Sending Emails Issue

The above fixes effectively prompt Outlook to send the user messages. But if none of them proves helpful, you still have many more to fall back on. Implement these measures by following the instructions carefully. 

1. Fix the Damaged Outbox Folder

Most probably, the above measures didn’t work out because your Outlook outbox is damaged. So you should fix it by making a new outbox folder. Ensure to make a copy of your message before you create a new outbox folder. Now stick to these steps. 

• Exit Outlook program. 
• Now search for outbox.dbx file on Windows Explorer. 
• Remove or delete it from your system. 
• Re-enter MS Outlook after deleting the file. 
• A new outbox folder will be made by Outlook. 
• You can now use the email you backed up and send it again. 

2. Update your Password in Outlook

Have you modified your email account password lately? If yes, you must have forgotten to update it on Outlook. It’s why you are unable to send emails from Outlook. 

• Click ‘File‘ in Outlook and then ‘Account Settings.’ 
• Tap ‘Account Settings‘ once more. 
• Select the ‘Email‘ tab, your email account, and hit ‘Change.’
• Input the modified password in its field. 
• Choose ‘Next‘ followed by ‘Close‘ and lastly ‘Finish.’
• Opt for the button ‘Send/Receive All Folders‘ and send your email.

3. Repair the Damaged Application

You will notice Outlook not sending emails if it is damaged. So, you’ll need to repair it to make it functional. 

• Exit every Office application. 
• Input ‘Apps & Features’ in the search bar and click on its result. 
• Locate and tap ‘Microsoft Office‘ in the set of apps and features. 
• Choose ‘Modify‘ and ‘Yes‘ when you are asked for the app to make changes to your system. 
• Opt for ‘Online Repair‘ and after that ‘Repair.’
• Now restart your Outlook program. 

4. Open your Outlook Application in Safe Mode

Often, the add-ins in the Outlook program prevent emails from getting sent to the recipient. You can use the program in safe mode and try sending messages. If you can send them, it means that an add-in is creating issues. 

Just input ‘outlook.exe /safe‘ in the Windows search box. Press Enter key after that. Outlook will open in safe mode.

5. Make a New Email Profile

A glitch in your email profile can lead to emails getting stuck in Outlook outbox. You can eliminate the glitch when you make another email profile.

• Go to the ‘Control Panel‘ and tap ‘User Account.’
• Tap ‘Mail.’ When its window appears, click ‘Add.’
• Type a name for your new email profile. 
• Now, click ‘OK.’
• Hit ‘Manually configure server settings.’
• Tap ‘Internet email‘ in the new window, followed by ‘Next.’
• An ‘Internet E-Mail Settings‘ dialog box will show up. 
• Choose ‘POP3‘ in the ‘Account Type Settings.’
• Click ‘Next’ and ‘Finish.’
• Now, open Outlook and select ‘Mail.’
• Tap ‘Profiles‘ and choose the one you have created. 
• Tap ‘OK.’
• Now send an email and see if it goes past your outbox. 

6. Switch on Authentication

It is also wise to turn on authentication when Outlook won’t send emails. Head over to the Internet email settings in Outlook and use these instructions after that. 

• Choose ‘Tools.’
• Now, head to ‘Email Accounts.’
• Tap to view or change the current email accounts. 
• Tap ‘Next‘ and pick an email account.
• Click ‘Change‘ and then ‘More Settings.’
• Now hit the tab of ‘Outgoing Server.’
• Place a checkmark beside ‘My outgoing server (SMTP) requires authentication‘ option. 
• Next, hit ‘Use the same setting as my incoming mail server.’
• Tap ‘OK.’
• Now, click ‘Apply‘ and at the end, ‘Finish.’

7. Enable TCP/IP protocol

If still, you are unable to send emails from Outlook, you can try to set TCP/IP as the default protocol. Here are the steps you should adhere to. 

• In the search box, input ‘ncpa.cpl.’
• Hit Enter on your keyboard. 
• Right-tap ‘Internet Connection‘ and pick ‘Properties.’
• Look at the ‘Networking‘ tab. The option ‘Internet Protocol Version 6 (TCP/IPv6)‘ should be checked. 
• Tap ‘OK‘ and exit the screen. Now, send a message from your Outlook.

Read Also – How To Fix Outlook Send Receive Error

 

Final Thoughts

Now you won’t feel stressed when you find Outlook not sending emails. You have the most effective instructions to deal with the issue. These measures will allow you to fix any damage to the application or your email profile. You can also contact email technical support if you want more clarification or speedy resolutions.