Dragon SMTP Pro

Pro add-on for Dragon SMTP. Send through Amazon SES, Postmark, Mailgun, Brevo, or Resend APIs, with automatic failover to a backup connection and failure alerts.

Documentation

1 year of updates · renews automatically

Or get every plugin, unlimited sites — £349/year

Features

What Dragon SMTP Pro does

Sending through your host's mail server works until it doesn't, usually on the day an order confirmation matters. SMTP Pro sends through a provider's API instead, fails over to a backup connection when the first starts rejecting, and retries without ever sending the same message twice.

API Providers

Send through Amazon SES, Postmark, Mailgun, Brevo, or Resend HTTP APIs instead of SMTP. Faster page loads, better deliverability, real provider message IDs

Automatic Failover

If the primary connection fails outright, the send is retried once through a backup connection (any provider or a backup SMTP server)

Duplicate-Safe Retries

Ambiguous failures such as timeouts are never retried by default, so you cannot double-send password resets; an aggressive mode is available

Failure Alerts

Email and/or Slack-compatible webhook alerts when sending fails, throttled so an outage does not flood you

Dragon Email Log Integration

Delivery results are recorded automatically when the free Dragon Email Log plugin is active