Unable to delete emails in outlook
                     Unable To Delete 
Emails In Outlook
Follow the simple steps, that listed below that help to 
fix the issue.
Introduction
Log in to your outlook account
Do the following steps
Configure your accounts
Perform the test mail
Fix the issue
And then, restart your computer
Login details
Go to the log in page
Enter the required details
Now, enter the outlook emails
Delete the unwanted emails
If you can’t able follow the steps
Account Settings
Go to file settings
Select the info
Click the account settings
In account settings, click the email tab
Choose the server settings
Server Settings
From your email account
Choose the server settings
Select POP3 and SMTP server settings
Enter the required server details
Fix the issue
Reference
If, you want to know more server settings, reach us 
by clicking the below link.
https://email-setup-center.com/unable-delet
e-emails-in-outlook
Thank You