• Account Name: a name you want to use to identify the SMTP account, like Gmail or Yahoo
• Description: optional description of the SMTP account

• Email address: specify the origin email address of the messages (from)

• Service: you can select one of the available default services to simplify the SMTP server configuration. See also next paragraphs for other details. 
• Host: SMTP server address
• Port: SMTP port. Usually port 25 is the default SMTP port but you can also use port 587 or 465
• Secure: enable to make your connection more secure. If true, the connection to the server will use TLS.
• Authentication: enable Authentication to login 
• Username: username for authentication inserted during email account creation
• Password: password for authentication inserted during email account creation

Save the configuration and use  button to verify your account configuration.

Service

Outlook365

If you choose Outlook365 as Service, you can enable Modern Authentication.

You can review these parameters: 

• Username: username for authentication inserted during email account creation;
• Cloud Provider: Select the cloud provider configured for this service.

Visit this page to learn more about Modern Authentication for Outlook365 and configure it. 

Gmail 

For Gmail service, you must enable "Access for less secure apps" in your email account. To do this:

1. Go to the "Less secure apps" section in My Account.
2. Enable the feature

Yahoo

For Yahoo service, you must enable "Allow Apps that use less Secure sign in" in your email account. To do this:

1. Go to "Your Account Security Settings" in My Account
2. Enable the feature