In your signup page, there is a checkbox: "I also want to subscribe to <Your Brand> mailing list".
In your "Customers List" page, you are able to filter the Customers who are subscribed to the mailing list and use the emails however you like. However, if you want to automate this feature, we recommend Mailchimp Integration.
When you integrate Mailchimp to your Helpviser account, your customers who signup to the support portal can also easily subscribe to your Mailchimp mailing list while signing up. Your customers can manage their subscription from the "Update Profile" page later.
For the integration of Mailchimp to Helpviser, you need to take the following steps:
1- Get your Mailchimp API key:
To get your API key, login to your Mailchimp account and click on the "Account" link in your User Menu:
Then click on "Extras -> API keys:

If you do not already have an API key, click on the "Create a Key" button:

When you create your API key, it will be listed as below:

Copy your API key somewhere to be used later.
2- Get your Audience ID:
Your Audience ID is the ID of the mailing list you created in Mailchimp. In order to get this unique ID, first go to the Audience page and click on "Manage Audience -> Settings":

Scroll to the bottom of the page, find your Unique ID and copy it somewhere to use in the next step:

3- Enter API key and Audience ID to Helpviser Mailchimp Settings:
Login to your Helpviser account and from the User Menu, click on "Settings":

In the settings page, click on the "Mailchimp API" tab. Then enter your Mailchimp API key and Audience ID to the related fields and click on "Update Mailchimp API Settings":

That's all, now your Helpviser account is connected to your Mailchimp mailing list.