We face many issues while trying to configure a cPanel mail account in older versions of Outlook. One of the frequent errors we get is the below
“None of the authentication method supported”
This can be fixed by the below steps
1. Login to WHM, Select Mailserver Configuration
2. Enable the following options and save
3. Now go to Exim configuration editor
4. Enable the following options and save
That’s it ! Now try to add the email account in the older version of your outlook application.