Adding a Custom SSL configuration

If you can't or don't want to use Content Delivery Networks when setting up SSL for click and open tracking, you can set up a custom SSL configuration.

Before Adding a Custom SSL configuration, you need to set up a valid link branding on your account.

To add a custom SSL configuration:

  1. Prepare a proxy (like a web application, NGINX, or Amazon API Gateway) to take all traffic for mailing.example.com and forward it to http://sendgrid.net or https://sendgrid.net.
  2. Set up the proxy to use HTTP or HTTPS. For HTTPS, provide a valid SSL certificate for mailing.example.com domain.
  3. To forward traffic, set the Host HTTP header to mailing.example.com domain.
  4. Point the CNAME record to your proxy. For example, CNAME mailing.example.com proxy.example.com.

Don't validate the DNS record more than once. After changing the CNAME, a second validation will fail, and the authentication will stop working.

Contact SendGrid Support to enable SSL click and open tracking.

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