Using Yahoo for Email sending

Per Yahoo's knowledgebase at the settings in CDE's program to send email is:
SMTP Server:
Username:   <Yahoo email address>
Password:  <Yahoo user password>
Use Advanced Settings to set SMTP Server Port:  Yes
SMTP Server Port: 587
Email Server requires SSL and/or TLS Mode: Yes
SSL/TLS Start Mode: Automatic

Important: Your Yahoo Account Security must be configured to allow apps that use less secure sign in. If this is disabled, the CDE program will usually receive a response of incorrect user name and/or password errors.