Step 1: Go to 'Integrations' and click 'Marketing Emails' on the right.

Step 2: Click on connect button next to 'Sendfox'. 

Step 3: Log in to your Sendfox account, click on the top right hamburger icon and navigate 'Settings.'

Step 4: Select the API key tab and click on the link 'Create New Token'.

Step 5: Name your API token and click the 'Create' Button.

Step 6: Here is your API key, Now copy your API token all the way from top to bottom.

Step 5: Go back to your Sumopreneur account, and you will see a pop-up where you'll ask for Name, API Token.

Give a name to your integration. 

And Paste the copied API Token click the update button to connect the service.