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Link branding

Link Branding allows you to customize the tracking domains used in your emails — replacing default MX18 tracking links with your own branded domain (e.g., click.yourdomain.com). This helps build trust and improves your email deliverability.

By default, MX18 uses a shared tracking domain for click and open tracking. With Link Branding, you point a subdomain of your own (like mail.yourdomain.com) to MX18’s tracking infrastructure.

Benefits include:

  • Improved Deliverability: ISPs trust emails that align sender and tracking domains
  • Brand Consistency: Recipients see your domain in tracking links
  • Authentication Alignment: Supports SPF, DKIM, and DMARC domain alignment for better inbox placement
  1. Log in to your MX18 Dashboard
  2. Navigate to Sender Authentication > Link Branding
  3. Choose a subdomain to brand (e.g., mail.yourdomain.com)
  4. MX18 will generate the necessary CNAME record

Update your DNS

Add the CNAME record in your DNS provider’s settings.

For example:

Type Host/Subdomain Value (Points to)
CNAME mail.yourdomain.com trk.mx18.io

This tells mailbox providers that mail.yourdomain.com is authorized to route tracking through MX18.

Refer to your domain registrar’s DNS documentation if needed: - GoDaddy - Namecheap - Cloudflare

Verifying DNS propagation

Once you’ve added the CNAME:

  1. Go back to the Link Branding section in MX18 Dashboard
  2. Click Verify next to the branding record
  3. If the DNS is set up correctly, the status will change to Verified

DNS changes may take a few minutes to a few hours to propagate globally.

Need help?

  • Ensure your CNAME points exactly to trk.mx18.io
  • Only use subdomains (e.g., mail. or track.), not your root domain
  • For support, email support@mx18.com