Outlook Not Sending Emails? Fix Now in The Best Way Possible

Outlook is one of the most amazing products of Microsoft that allows you to efficiently use email, calendar, tasks, contacts, and much more. You can easily attach files from Onedrive, view LinkedIn profiles through your contacts, book contact rooms, and track RSVPs for meetings directly through the calendar. But what happens when your Outlook not sending emails? Sometimes when you are working with Outlook, you would be unable to send or receive email. This can be seen by many users. Don’t need to get irritated when you are getting messages saying “Outlook email not sending”. In this blog, you will find the most detailed procedure to help you fix this issue.


The Process to Fix “Outlook Not Sending Emails”


Method 1 – Restore Outlook 2010, 2013, or 2016 on Windows 10

First of all, make sure to close the entire application of MS office. After that, you need to type Apps and features in the windows search box. Now you need to choose the apps and features. Now search MS Office from the list of installed apps and click on it. Then, choose the modify option and tap on yes only when a user account window appears. After this, a window will appear with the message “Do you want to allow this app to make changes to your device?”. Here you need to choose online repair and then repair. 

To finish the repair process, restart Outlook. 


Method 2 – Restore Outlook 2010, 2013, or 2016 in Windows 8

First, close all the apps of MS Office. And then right-click on the start button. Now you need to choose the control panel and check and category chosen in the view by list. After this, you need to tap on Uninstall a program under the Program option. 

Then, you need to right-click on the MS office and select the option named change. Here you need to choose “Online Repair” if the option is available depending upon the version of MS Office you are using. Under the account control display, choose repair and then tap on yes. Finally, you need to restart the outlook when the repair process is finished. 


Method 3 – Restore the Outlook 2010, 2016, or 2010 in Windows 7

Before anything else, close all the applications of MS Office and tap on the control button and then choose the control panel. Confirm the category is chosen in the list. Under the program option, look from the uninstall program option and then click on it. Choose MS Office from the list of programs and tap on change. Now choose the option of online repair when accessible. 

To finish the repair process restart the Outlook and check. 


Method 4 – Repair Outlook Won’t Send Emails in the Mac

In Mac, you need to check a few things when your Outlook not sending emails. Below are the steps that can help you to do the same most effectively. 

1. Recheck the Email Address of the Recipient

Even the tiniest error can abstain Outlook from sending the mail. Check whether you have typed the mail correctly or not. For example, you might have typed a comma instead of a period. 

2. Check Your Connection

You need to confirm whether you are connected to the internet or not. Then, make sure that you are working on the online mode of Outlook. You can do this by visiting the Outlook menu, and check if the work offline mode is on. If it is, tap on Work Offline to uncheck the checkbox.

3. Make Sure to Clear the Send Box

By making the sent folder vacant, you can unload the stuck messages. Follow the steps to do so; 

  1. First of all, open the sent folder. 
  2. Delete all the messages in the folder. 
  3. Then, leave the Outlook page and restart. 
  4. And then send the mail to identify whether the problem has been solved or not. 

4. Recreate the Database

With Microsoft utility, you can create a corrupted database and easily repair Outlook. Microsoft Exchange allows its users to rebuild the database and remove the information that is previously not synced with the server. Before recreating the database make sure to back up the Outlook data stored on your PC. Here are the steps to articulate the process; 

  1. Exit all the applications of Microsoft Office. 
  2. Tap on the Outlook icon in the Dock after holding on to the Option key and get access to the Microsoft database. 
  3. Choose the identity of the related database. 
  4. Now, you need to choose an option named “rebuilt”. 
  5. When the process is done, restart the outlook. Your “Outlook not sending emails” issue must be resolved.  


Method 5 – Repair Outlook Email Not Sending on Outlook Online

1. Clear the Inbox

Sometimes, when your inbox is full you will not be able to send or receive any mail. Delete all the emails you don’t need to save any more from the inbox and clear the junk mail folder by right-clicking and selecting “Empty”.

2. Recheck the Address of the Recipient

A tiny mistake while typing the recipient may lead your mail to become a headache for you. Make sure that you have typed the right address of the recipient once again and then resend. 

3. Check your Sending Limit 

Outlook sometimes limits the number of emails you can send in a day to restrict the spammers. If you have sent a large number of emails within that day, save and draft that email and try sending it the next day. Also, you can extend your sending limit through security settings. You can do it by visiting the Microsoft account security page, tapping and tapping on the update info option, confirming your identity, and following instructions on the screen. This will help you to fix the issue. 

Read Also: How to Troubleshoot Outlook Not Receiving Emails Problem?



If you have performed all the steps that perfectly fit your situation, but still your Outlook email not sending, few more things can help. Check the size of your attachment. Make sure that your file size must fall under the mentioned size of outlook. In case you have changed your password you need to alter the password in outlook as well. After that, your issue must be resolved. 


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