Create account at cloudflare.com
Click Add Site in your account.
Then, go to DNS settings to set up a domain.
You must add new DNS records related to Elastic Email (you don't have to add them if you already have them present):
Go to Page Rules settings to set up Full tracking SSL for your domain:
Create Page Rule
Add domain [example: tracking.yourdomain.com/*] and select SSL Full:
Setting up your domain DNS
Login to your domain admin panel and go to DNS settings. Set DNS to cloudflare.com servers as follows:
You may need to wait up to 72 hours for DNS changes to take effect.