Custom Sending Domain
Send review request emails from your own domain (e.g. reviews@yourbrand.com) instead of the default sender.
Why Use a Custom Domain?
Using your own domain improves email deliverability and brand trust. Customers are more likely to open and act on emails from a recognizable address than from a generic shared sender.
Better deliverability
Emails sent from your own verified domain are less likely to land in spam.
Brand consistency
Your store name appears in the From address, building customer recognition.
Authentication
DKIM and SPF records verify your identity to receiving email servers.
Setup Overview
Setting up a custom sending domain involves adding DNS records to your domain to verify ownership and authorize SendGrid to send on your behalf.
Enter your domain
In DNA Blocks Settings, scroll to the Custom Sending Domain section and enter the domain you want to send from (e.g. yourbrand.com).
Get DNS records
After entering your domain, DNA Blocks will display the DNS records you need to add. Copy these records — you will need them in the next step.
Add DNS records to your domain
Log in to your domain registrar (e.g. Namecheap, GoDaddy, Cloudflare) and add the provided CNAME records to your domain's DNS settings.
Verify the domain
Click Verify Domain in DNA Blocks Settings. DNS propagation can take a few minutes to 48 hours. Once verified, your custom domain will be used for all outgoing emails.
DNS Records
The following types of DNS records will be provided during setup:
| Record Type | Purpose |
|---|---|
| CNAME (×3) | DKIM verification — proves you own the domain and authorizes SendGrid to sign emails on your behalf |
If your domain uses Cloudflare, make sure to set the CNAME records to DNS only (grey cloud icon), not proxied (orange cloud). Proxied CNAME records will fail domain verification.
Sender Email Address
After your custom domain is verified, update your Sender Email in Settings to use an address on that domain (e.g. reviews@yourbrand.com or hello@yourbrand.com). This is the address that will appear in the From field of your review request emails.
Troubleshooting
| Issue | Solution |
|---|---|
| Verification fails immediately | Double-check that all CNAME records were added correctly with no typos. Record names and values must match exactly. |
| Verification pending for over 48 hours | Contact your DNS provider to confirm the records are propagated. Use a tool like MXToolbox to check CNAME resolution. |
| Emails still coming from default sender | Make sure your Sender Email in Settings uses your verified custom domain, and that the domain status shows as Verified. |
| Cloudflare proxy blocking verification | Set the CNAME records to DNS only (grey cloud) in Cloudflare. Proxied records interfere with DKIM verification. |