SMTP relay service

SMTP relay for apps that already know SMTP

Many products do not need a new email API. WordPress, WooCommerce, Laravel, Django, Rails, and internal tools can often send through SMTP today. zaSend gives them a verified SMTP host, domain-scoped credentials, DKIM signing, and logs.

Create SMTP Key SMTP Docs

SMTP settings

Host
smtp.zasend.com
Port
587 STARTTLS
Username
sender@yourdomain.com
Password
dsk_live_...

When SMTP is the right path

  • WordPress and WooCommerce transactional email
  • Django, Flask, Laravel, Rails, and PHP apps
  • Existing Nodemailer or SMTP integrations
  • Internal tools that need verified domain sending
  • Apps that want SMTP now and API/webhooks later
const transporter = nodemailer.createTransport({
  host: "smtp.zasend.com",
  port: 587,
  secure: false,
  auth: {
    user: "noreply@yourdomain.com",
    pass: "dsk_live_..."
  }
});

A note about SMTP credentials

Use a sender address at your verified domain as the username, for example noreply@yourdomain.com. The password is a Domain Sending Key. That keeps SMTP access scoped to one domain instead of exposing a full account API key.