Verify a domain

You can only send from a domain you own and have verified. Verification proves ownership and sets up DKIM so your mail is signed and lands in inboxes.

Steps

1. In the dashboard, open Domains and click Add domain.
2. Enter your domain, for example yourdomain.com.
3. Duta shows a set of DNS records (DKIM, and a custom MAIL FROM record).
4. Add those records at your DNS provider (Cloudflare, Namecheap, etc.).
5. Back in the dashboard, wait for the status to turn verified. DNS can take a few minutes to propagate.

Sending

Once verified, send from any address on that domain:

await duta.emails.send({
  from: "hello@yourdomain.com",
  to: "user@example.com",
  subject: "Hello",
  text: "It works.",
});

If you try to send from an unverified domain, the API returns 403. See Errors.

Custom MAIL FROM

Duta sets up a custom MAIL FROM subdomain (for example mail.yourdomain.com). This improves SPF alignment and brands the “mailed-by” line that Gmail shows. It is configured automatically as part of domain onboarding.