Under Account Settings, I used to be able to input a specific set of identity credentials for authentication in the SMTP section. The “Use these Credentials” radio button is there but there is no place to put the credentials anymore. I need to do this because my home email account will not let me use SMTP through Netzero.
If your account is setup using oAuth, you cannot enter credentials manually as they are not used to connect to the server.
You will need to remove the account from eM Client, and then add it again, but set it up manually.
To setup your account manually, please see the section in the Help File.