Even while it sometimes appears as though Outlook should be able to send an email message, there are sometimes problems, such as outlook emails stuck in the outbox, that make this impossible. Fortunately, you may resolve this issue on your own using the troubleshooting techniques listed below. For optimal results, complete each step one at a time until your problem is solved or you've discovered the approach that suits you the most.
You could not be receiving emails from Outlook due of your automatic updates. When updates are implemented, the Outlook could abruptly quit, stopping email sending and receiving.
Go to File > Options > Advanced to disable automatic updates. Remove the checkmark from the box next to Check for updates under the Automatic Updates section.
Uninstalling any prior versions of Outlook is one thing you might try if you're having issues with the program. This is due to the fact that newer versions and older versions may clash and create issues.
To achieve this,
select Outlook from the list of installed programs by going to Control Panel > Programs and Features.
Uninstall it by doing a right-click on it.
After completing the instructions to remove Outlook,
Switch off your computer.
Check to see whether Outlook can be opened once more.
Deactivate SmartScreen Filter
Your email may not be getting through if you're using Outlook 2016 or 2013.
This is likely due to the SmartScreen filter.
Go to the File tab and choose Options to disable it.
then choose Trust Center.
To turn off the SmartScreen Filter, select the corresponding button.
If you're using Outlook 2010,
select Options under Tools.
Uncheck the box next to Junk E-mail Protection.
Implement the Microsoft Office Junk Email Filter.
Select OK.
For these changes to take effect, restart Outlook.
Modify the email sending preferences
Sometimes a straightforward option in Outlook prevents emails from being sent.
Open Outlook and alter the email sending preferences there.
open File and select Account Settings.
Next, click the Change icon to the right of your email account.
Open the More Settings tab in the newly opened window.
Make sure the box labeled "My outgoing server (SMTP) requires authentication" is checked in the Outgoing Server section.
Update your antivirus program first if you're using Microsoft Outlook and have trouble getting emails or having Outlook emails get stuck in the outbox. This is due to the fact that email viruses are a prevalent issue and frequently stop Outlook from working properly. After updating your antivirus program, restart Outlook and check to see if it functions properly once more.
Modify the security settings in Outlook
Because of its security settings, Outlook might not be delivering emails. Open Outlook and select File > Account Settings > double-click on your account > More Settings > Security to alter these settings. You can modify the settings from point on to let less secure apps access to your account.
Your virus scanner may be out-of-date, which could be the cause of your Outlook's inability to send emails. Incoming and outgoing emails may not be thoroughly scanned for dangers if you're using an outdated virus scanner. Open the program and seek for an update option to see if your virus scanner is current.
On the homepage, there ought to be a link that directs you to the website, where you may download free updates. Simply click on this link to download the most recent version of your antivirus program, which will enable it to quickly detect any potential threats. This update will assist you in resolving the Outlook server connection problem.