Using SendGrid As The SMTP Provider

This guide walks through connecting SendGrid as your SMTP provider within the platform. It covers the exact configuration and settings needed for seamless, reliable email delivery through SendGrid.

Follow each step in order — from creating your SendGrid account through verifying a sender identity — to avoid the most common connection errors. For deeper troubleshooting, see the dedicated section near the end of this article.

If you don't already have a SendGrid account, create one at signup.sendgrid.com.

Click on Email Services → Add Service, then select SendGrid from the dropdown.

If you want to integrate SendGrid for all locations at once, you can set this up from the agency view instead:

https://app.gohighlevel.com/settings/email_services

In SendGrid, click Settings → API Keys → Create API Key.

Sub-step A

Type an API Key Name

Make sure API Key Permissions is set to Full Access, then click Create & View.

Sub-step B

Copy the highlighted API key

SendGrid only shows the full key once — copy it now. You'll paste it into the platform in the next step.

Username: apikey

Email: your SendGrid login email

Password: paste the copied API key here

Click Save.

SendGrid requires two-factor authentication on your account before it will allow full API access. Complete the 2FA setup from your SendGrid account settings if you haven't already.

Create a sender here using your SendGrid login email.

Go back to the platform and click Save again to finalize the integration.

You'll now see SendGrid listed as your active SMTP provider in the platform.

If you get an error when you send a test email in the Conversation, click the ⚠️ (red triangle) icon to view more details about the error.