In this article, we will learn how to set up SendGrid so we can send invoices via email. SendGrid is a world-class service for sending emails, its free to use and easy to set up.
Get SendGrid API Key
Head over to sendgrid.com and create an account if you haven't yet got one. Once logged in select settings from the bottom of the side menu, then select "API Keys", Then click "Create API Key".
Now enter a name for the key, select "Full Access" and click "Create & View". When the key is displayed to you, copy it so we can paste it into the G2S.
Now back to the G2S, open the preferences window, select the Customer's tab under the appropriate organisation and select the SendGrid tab, then paste in the API Key we just copied.