These settings only apply to email addresses hosted by Ashland Home Net. If you use a web-based mail service (Yahoo, Gmail, Hotmail, etc.) you will need to obtain the proper settings from them.
These screenshots are from Mac Mail on MacOS 10.14 Mojave.
If you are using a previous version, it should be similar, but some screens might not look exactly the same.
Verify that the email account is setup correctly and set to not automatically manage email settings in the server settings tab.