Custom Tracking Domains
Set up a custom tracking domain for better email deliverability:
Why Custom Tracking Domains:
- By default, the open/click tracking and unsubscribe links in your cold emails use WarmySender's shared domain
- A custom domain (e.g., track.yourdomain.com) improves deliverability because the tracking links match your sending domain
- Email providers are less likely to flag emails with matching domains as suspicious
Setup Steps:
1) Go to Settings > Tracking Domains
2) Click 'Add Domain' and enter your tracking SUBDOMAIN (e.g., track.yourdomain.com). It must be a subdomain: entering your bare domain (yourdomain.com) is refused, with a message explaining that a tracking domain must be a subdomain and offering track.yourdomain.com as a one-click fix. Pointing your bare domain at us would take your own website and email routing offline
3) The system shows the CNAME target you need to add: track.warmysender.com
4) Go to your DNS provider and create a CNAME record:
- Name/Host: track (or your chosen subdomain)
- Value/Target: track.warmysender.com
- TTL: 3600 (or default)
5) Wait for DNS propagation (can take up to 48 hours, usually faster)
6) Click 'Verify' in WarmySender. Verification confirms your domain is fully live — that it resolves AND securely serves your tracking links end to end — not just that the DNS record exists.
Status Values:
- Not checked yet — added, but nobody has checked it. Every domain starts here and stays here until you click Verify
- Verified · working — confirmed live; your campaigns now use your domain for open/click/unsubscribe links
- Needs attention — we couldn't reach the domain yet (fix the record and click Verify again)
Automatic fallback (your sends are always safe): once a domain is Verified, WarmySender keeps checking that it stays healthy. If a custom domain is ever removed, or its DNS changes and it stops working, your campaigns automatically fall back to our default domain and keep sending without interruption — a broken tracking domain can never stop your emails from going out.
You can set up multiple tracking domains. Tracking domains are managed per workspace.
Rule (enforced, not just advice): a tracking domain must be a SUBDOMAIN of a domain you own — track.acme.com, not acme.com. Bare/apex domains are rejected at the point you add them. Use a subdomain of the domain you actually send from (if you send from @acme.com, use track.acme.com) so your links match your sending address.
Full step-by-step walkthrough with a worked example and FAQ: see 'How to use your own tracking domain' at /documentation/how-to-use-your-own-tracking-domain.