The Divi Email Optin module supports various email providers. Within each email provider, you can create custom data fields that can store different pieces of information about your email subscribers. This data can then be used to segment your email lists or create email autoresponders. By default, all email providers support the following fields: Name & Email. If you want to collect additional information, you will need to configure new custom fields.
Once a custom column of information has been created for your list within your email provider, a custom field can be added to your email optin module. When a visitor fills out that custom field, the data they input will be saved to your list in the subscriber’s user profile within your email provider’s system.